Home / 14,257.40-21,386.10-6,359.90

Finding the Fourth Proportional to 14,257.40, 21,386.10 and 6,359.90

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Solution

The fourth proportional to 14,257.40, 21,386.10 and 6,359.90 is: 9,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.40 : 21,386.10 = 6,359.90 : x
  2. Step 2: Convert to fraction form
    14,257.40/21,386.10 = 6,359.90/x
  3. Step 3: Cross multiply
    14,257.40x = 21,386.10 × 6,359.90
  4. Step 4: Simplify right side
    14,257.40x = 136,013,457.39
  5. Step 5: Solve for x
    x = 136,013,457.39/14,257.40
  6. Step 6: Final answer
    x = 9,539.85

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Similar ratio
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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.