Home / 18,955.57-28,432.32-5,807.98

Finding the Fourth Proportional to 18,955.57, 28,432.32 and 5,807.98

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Solution

The fourth proportional to 18,955.57, 28,432.32 and 5,807.98 is: 8,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.57 : 28,432.32 = 5,807.98 : x
  2. Step 2: Convert to fraction form
    18,955.57/28,432.32 = 5,807.98/x
  3. Step 3: Cross multiply
    18,955.57x = 28,432.32 × 5,807.98
  4. Step 4: Simplify right side
    18,955.57x = 165,134,248.75
  5. Step 5: Solve for x
    x = 165,134,248.75/18,955.57
  6. Step 6: Final answer
    x = 8,711.65

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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.