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Finding the Fourth Proportional to 17,632.40, 26,411.80 and 8,280.40

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Solution

The fourth proportional to 17,632.40, 26,411.80 and 8,280.40 is: 12,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,632.40 : 26,411.80 = 8,280.40 : x
  2. Step 2: Convert to fraction form
    17,632.40/26,411.80 = 8,280.40/x
  3. Step 3: Cross multiply
    17,632.40x = 26,411.80 × 8,280.40
  4. Step 4: Simplify right side
    17,632.40x = 218,700,268.72
  5. Step 5: Solve for x
    x = 218,700,268.72/17,632.40
  6. Step 6: Final answer
    x = 12,403.32

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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.