Home / 11,442.07-15,781.91-10,500.91

Finding the Fourth Proportional to 11,442.07, 15,781.91 and 10,500.91

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Solution

The fourth proportional to 11,442.07, 15,781.91 and 10,500.91 is: 14,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.07 : 15,781.91 = 10,500.91 : x
  2. Step 2: Convert to fraction form
    11,442.07/15,781.91 = 10,500.91/x
  3. Step 3: Cross multiply
    11,442.07x = 15,781.91 × 10,500.91
  4. Step 4: Simplify right side
    11,442.07x = 165,724,324.58
  5. Step 5: Solve for x
    x = 165,724,324.58/11,442.07
  6. Step 6: Final answer
    x = 14,483.77

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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.