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Finding the Fourth Proportional to 14,037.84, 21,038.13 and 7,449.84

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Solution

The fourth proportional to 14,037.84, 21,038.13 and 7,449.84 is: 11,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,037.84 : 21,038.13 = 7,449.84 : x
  2. Step 2: Convert to fraction form
    14,037.84/21,038.13 = 7,449.84/x
  3. Step 3: Cross multiply
    14,037.84x = 21,038.13 × 7,449.84
  4. Step 4: Simplify right side
    14,037.84x = 156,730,702.40
  5. Step 5: Solve for x
    x = 156,730,702.40/14,037.84
  6. Step 6: Final answer
    x = 11,164.87

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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.