Home / 11,516.76-15,921.48-11,411.52

Finding the Fourth Proportional to 11,516.76, 15,921.48 and 11,411.52

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Solution

The fourth proportional to 11,516.76, 15,921.48 and 11,411.52 is: 15,775.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.76 : 15,921.48 = 11,411.52 : x
  2. Step 2: Convert to fraction form
    11,516.76/15,921.48 = 11,411.52/x
  3. Step 3: Cross multiply
    11,516.76x = 15,921.48 × 11,411.52
  4. Step 4: Simplify right side
    11,516.76x = 181,688,287.45
  5. Step 5: Solve for x
    x = 181,688,287.45/11,516.76
  6. Step 6: Final answer
    x = 15,775.99

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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.