Home / 19,539.64-29,325.80-8,454.76

Finding the Fourth Proportional to 19,539.64, 29,325.80 and 8,454.76

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Solution

The fourth proportional to 19,539.64, 29,325.80 and 8,454.76 is: 12,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.64 : 29,325.80 = 8,454.76 : x
  2. Step 2: Convert to fraction form
    19,539.64/29,325.80 = 8,454.76/x
  3. Step 3: Cross multiply
    19,539.64x = 29,325.80 × 8,454.76
  4. Step 4: Simplify right side
    19,539.64x = 247,942,600.81
  5. Step 5: Solve for x
    x = 247,942,600.81/19,539.64
  6. Step 6: Final answer
    x = 12,689.21

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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.