Home / 18,815.52-25,964.80-10,432.64

Finding the Fourth Proportional to 18,815.52, 25,964.80 and 10,432.64

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Solution

The fourth proportional to 18,815.52, 25,964.80 and 10,432.64 is: 14,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.52 : 25,964.80 = 10,432.64 : x
  2. Step 2: Convert to fraction form
    18,815.52/25,964.80 = 10,432.64/x
  3. Step 3: Cross multiply
    18,815.52x = 25,964.80 × 10,432.64
  4. Step 4: Simplify right side
    18,815.52x = 270,881,411.07
  5. Step 5: Solve for x
    x = 270,881,411.07/18,815.52
  6. Step 6: Final answer
    x = 14,396.70

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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.