Home / 12,101.40-18,152.10-9,148.95

Finding the Fourth Proportional to 12,101.40, 18,152.10 and 9,148.95

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Solution

The fourth proportional to 12,101.40, 18,152.10 and 9,148.95 is: 13,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.40 : 18,152.10 = 9,148.95 : x
  2. Step 2: Convert to fraction form
    12,101.40/18,152.10 = 9,148.95/x
  3. Step 3: Cross multiply
    12,101.40x = 18,152.10 × 9,148.95
  4. Step 4: Simplify right side
    12,101.40x = 166,072,655.30
  5. Step 5: Solve for x
    x = 166,072,655.30/12,101.40
  6. Step 6: Final answer
    x = 13,723.43

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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.