Home / 14,496.18-21,711.25-8,640.69

Finding the Fourth Proportional to 14,496.18, 21,711.25 and 8,640.69

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Solution

The fourth proportional to 14,496.18, 21,711.25 and 8,640.69 is: 12,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,496.18 : 21,711.25 = 8,640.69 : x
  2. Step 2: Convert to fraction form
    14,496.18/21,711.25 = 8,640.69/x
  3. Step 3: Cross multiply
    14,496.18x = 21,711.25 × 8,640.69
  4. Step 4: Simplify right side
    14,496.18x = 187,600,180.76
  5. Step 5: Solve for x
    x = 187,600,180.76/14,496.18
  6. Step 6: Final answer
    x = 12,941.35

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1.5x scale

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.