Home / 14,000.56-19,320.08-7,711.76

Finding the Fourth Proportional to 14,000.56, 19,320.08 and 7,711.76

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Solution

The fourth proportional to 14,000.56, 19,320.08 and 7,711.76 is: 10,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.56 : 19,320.08 = 7,711.76 : x
  2. Step 2: Convert to fraction form
    14,000.56/19,320.08 = 7,711.76/x
  3. Step 3: Cross multiply
    14,000.56x = 19,320.08 × 7,711.76
  4. Step 4: Simplify right side
    14,000.56x = 148,991,820.14
  5. Step 5: Solve for x
    x = 148,991,820.14/14,000.56
  6. Step 6: Final answer
    x = 10,641.85

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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.