Home / 12,712.38-19,068.96-4,392.87

Finding the Fourth Proportional to 12,712.38, 19,068.96 and 4,392.87

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Solution

The fourth proportional to 12,712.38, 19,068.96 and 4,392.87 is: 6,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.38 : 19,068.96 = 4,392.87 : x
  2. Step 2: Convert to fraction form
    12,712.38/19,068.96 = 4,392.87/x
  3. Step 3: Cross multiply
    12,712.38x = 19,068.96 × 4,392.87
  4. Step 4: Simplify right side
    12,712.38x = 83,767,462.32
  5. Step 5: Solve for x
    x = 83,767,462.32/12,712.38
  6. Step 6: Final answer
    x = 6,589.44

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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.