Home / 12,457.51-17,191.50-6,792.21

Finding the Fourth Proportional to 12,457.51, 17,191.50 and 6,792.21

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Solution

The fourth proportional to 12,457.51, 17,191.50 and 6,792.21 is: 9,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.51 : 17,191.50 = 6,792.21 : x
  2. Step 2: Convert to fraction form
    12,457.51/17,191.50 = 6,792.21/x
  3. Step 3: Cross multiply
    12,457.51x = 17,191.50 × 6,792.21
  4. Step 4: Simplify right side
    12,457.51x = 116,768,252.74
  5. Step 5: Solve for x
    x = 116,768,252.74/12,457.51
  6. Step 6: Final answer
    x = 9,373.32

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Half scale
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Double scale
Find fourth proportional to 12,458.51, 17,192.88 and 6,793.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.