Home / 11,507.55-15,908.72-11,402.29

Finding the Fourth Proportional to 11,507.55, 15,908.72 and 11,402.29

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Solution

The fourth proportional to 11,507.55, 15,908.72 and 11,402.29 is: 15,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.55 : 15,908.72 = 11,402.29 : x
  2. Step 2: Convert to fraction form
    11,507.55/15,908.72 = 11,402.29/x
  3. Step 3: Cross multiply
    11,507.55x = 15,908.72 × 11,402.29
  4. Step 4: Simplify right side
    11,507.55x = 181,395,838.97
  5. Step 5: Solve for x
    x = 181,395,838.97/11,507.55
  6. Step 6: Final answer
    x = 15,763.20

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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.