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Finding the Fourth Proportional to 19,950.64, 29,929.54 and 8,264.76

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Solution

The fourth proportional to 19,950.64, 29,929.54 and 8,264.76 is: 12,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.64 : 29,929.54 = 8,264.76 : x
  2. Step 2: Convert to fraction form
    19,950.64/29,929.54 = 8,264.76/x
  3. Step 3: Cross multiply
    19,950.64x = 29,929.54 × 8,264.76
  4. Step 4: Simplify right side
    19,950.64x = 247,360,465.01
  5. Step 5: Solve for x
    x = 247,360,465.01/19,950.64
  6. Step 6: Final answer
    x = 12,398.62

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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.