Home / 12,000.71-16,561.91-6,624.20

Finding the Fourth Proportional to 12,000.71, 16,561.91 and 6,624.20

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Solution

The fourth proportional to 12,000.71, 16,561.91 and 6,624.20 is: 9,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.71 : 16,561.91 = 6,624.20 : x
  2. Step 2: Convert to fraction form
    12,000.71/16,561.91 = 6,624.20/x
  3. Step 3: Cross multiply
    12,000.71x = 16,561.91 × 6,624.20
  4. Step 4: Simplify right side
    12,000.71x = 109,709,462.19
  5. Step 5: Solve for x
    x = 109,709,462.19/12,000.71
  6. Step 6: Final answer
    x = 9,141.91

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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.