Home / 12,457.60-18,686.40-8,550.16

Finding the Fourth Proportional to 12,457.60, 18,686.40 and 8,550.16

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Solution

The fourth proportional to 12,457.60, 18,686.40 and 8,550.16 is: 12,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.60 : 18,686.40 = 8,550.16 : x
  2. Step 2: Convert to fraction form
    12,457.60/18,686.40 = 8,550.16/x
  3. Step 3: Cross multiply
    12,457.60x = 18,686.40 × 8,550.16
  4. Step 4: Simplify right side
    12,457.60x = 159,771,631.04
  5. Step 5: Solve for x
    x = 159,771,631.04/12,457.60
  6. Step 6: Final answer
    x = 12,825.24

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.