Home / 14,260.40-19,680.24-7,972.76

Finding the Fourth Proportional to 14,260.40, 19,680.24 and 7,972.76

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Solution

The fourth proportional to 14,260.40, 19,680.24 and 7,972.76 is: 11,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.40 : 19,680.24 = 7,972.76 : x
  2. Step 2: Convert to fraction form
    14,260.40/19,680.24 = 7,972.76/x
  3. Step 3: Cross multiply
    14,260.40x = 19,680.24 × 7,972.76
  4. Step 4: Simplify right side
    14,260.40x = 156,905,830.26
  5. Step 5: Solve for x
    x = 156,905,830.26/14,260.40
  6. Step 6: Final answer
    x = 11,002.91

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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.