Home / 12,412.16-17,128.96-6,823.36

Finding the Fourth Proportional to 12,412.16, 17,128.96 and 6,823.36

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Solution

The fourth proportional to 12,412.16, 17,128.96 and 6,823.36 is: 9,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.16 : 17,128.96 = 6,823.36 : x
  2. Step 2: Convert to fraction form
    12,412.16/17,128.96 = 6,823.36/x
  3. Step 3: Cross multiply
    12,412.16x = 17,128.96 × 6,823.36
  4. Step 4: Simplify right side
    12,412.16x = 116,877,060.51
  5. Step 5: Solve for x
    x = 116,877,060.51/12,412.16
  6. Step 6: Final answer
    x = 9,416.34

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Half scale
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Double scale
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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.