Home / 11,272.64-15,561.28-7,502.48

Finding the Fourth Proportional to 11,272.64, 15,561.28 and 7,502.48

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Solution

The fourth proportional to 11,272.64, 15,561.28 and 7,502.48 is: 10,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.64 : 15,561.28 = 7,502.48 : x
  2. Step 2: Convert to fraction form
    11,272.64/15,561.28 = 7,502.48/x
  3. Step 3: Cross multiply
    11,272.64x = 15,561.28 × 7,502.48
  4. Step 4: Simplify right side
    11,272.64x = 116,748,191.97
  5. Step 5: Solve for x
    x = 116,748,191.97/11,272.64
  6. Step 6: Final answer
    x = 10,356.77

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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.