Home / 10,913.32-16,370.54-3,123.28

Finding the Fourth Proportional to 10,913.32, 16,370.54 and 3,123.28

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Solution

The fourth proportional to 10,913.32, 16,370.54 and 3,123.28 is: 4,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.32 : 16,370.54 = 3,123.28 : x
  2. Step 2: Convert to fraction form
    10,913.32/16,370.54 = 3,123.28/x
  3. Step 3: Cross multiply
    10,913.32x = 16,370.54 × 3,123.28
  4. Step 4: Simplify right side
    10,913.32x = 51,129,780.17
  5. Step 5: Solve for x
    x = 51,129,780.17/10,913.32
  6. Step 6: Final answer
    x = 4,685.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.