Home / 21,129.13-29,157.06-11,567.16

Finding the Fourth Proportional to 21,129.13, 29,157.06 and 11,567.16

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Solution

The fourth proportional to 21,129.13, 29,157.06 and 11,567.16 is: 15,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,129.13 : 29,157.06 = 11,567.16 : x
  2. Step 2: Convert to fraction form
    21,129.13/29,157.06 = 11,567.16/x
  3. Step 3: Cross multiply
    21,129.13x = 29,157.06 × 11,567.16
  4. Step 4: Simplify right side
    21,129.13x = 337,264,378.15
  5. Step 5: Solve for x
    x = 337,264,378.15/21,129.13
  6. Step 6: Final answer
    x = 15,962.06

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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.