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Finding the Fourth Proportional to 18,641, 25,724.58 and 10,257.32

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Solution

The fourth proportional to 18,641, 25,724.58 and 10,257.32 is: 14,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641 : 25,724.58 = 10,257.32 : x
  2. Step 2: Convert to fraction form
    18,641/25,724.58 = 10,257.32/x
  3. Step 3: Cross multiply
    18,641x = 25,724.58 × 10,257.32
  4. Step 4: Simplify right side
    18,641x = 263,865,248.93
  5. Step 5: Solve for x
    x = 263,865,248.93/18,641
  6. Step 6: Final answer
    x = 14,155.10

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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.