Home / 12,557.52-18,840.39-5,165.46

Finding the Fourth Proportional to 12,557.52, 18,840.39 and 5,165.46

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Solution

The fourth proportional to 12,557.52, 18,840.39 and 5,165.46 is: 7,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.52 : 18,840.39 = 5,165.46 : x
  2. Step 2: Convert to fraction form
    12,557.52/18,840.39 = 5,165.46/x
  3. Step 3: Cross multiply
    12,557.52x = 18,840.39 × 5,165.46
  4. Step 4: Simplify right side
    12,557.52x = 97,319,280.93
  5. Step 5: Solve for x
    x = 97,319,280.93/12,557.52
  6. Step 6: Final answer
    x = 7,749.88

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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.