Home / 12,439.84-18,659.47-5,042.32

Finding the Fourth Proportional to 12,439.84, 18,659.47 and 5,042.32

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Solution

The fourth proportional to 12,439.84, 18,659.47 and 5,042.32 is: 7,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.84 : 18,659.47 = 5,042.32 : x
  2. Step 2: Convert to fraction form
    12,439.84/18,659.47 = 5,042.32/x
  3. Step 3: Cross multiply
    12,439.84x = 18,659.47 × 5,042.32
  4. Step 4: Simplify right side
    12,439.84x = 94,087,018.77
  5. Step 5: Solve for x
    x = 94,087,018.77/12,439.84
  6. Step 6: Final answer
    x = 7,563.36

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Similar ratio
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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.