Home / 11,711.52-16,156.80-7,460.32

Finding the Fourth Proportional to 11,711.52, 16,156.80 and 7,460.32

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Solution

The fourth proportional to 11,711.52, 16,156.80 and 7,460.32 is: 10,291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.52 : 16,156.80 = 7,460.32 : x
  2. Step 2: Convert to fraction form
    11,711.52/16,156.80 = 7,460.32/x
  3. Step 3: Cross multiply
    11,711.52x = 16,156.80 × 7,460.32
  4. Step 4: Simplify right side
    11,711.52x = 120,534,898.18
  5. Step 5: Solve for x
    x = 120,534,898.18/11,711.52
  6. Step 6: Final answer
    x = 10,291.99

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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.