Home / 12,127.60-18,192.17-3,807.93

Finding the Fourth Proportional to 12,127.60, 18,192.17 and 3,807.93

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Solution

The fourth proportional to 12,127.60, 18,192.17 and 3,807.93 is: 5,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.60 : 18,192.17 = 3,807.93 : x
  2. Step 2: Convert to fraction form
    12,127.60/18,192.17 = 3,807.93/x
  3. Step 3: Cross multiply
    12,127.60x = 18,192.17 × 3,807.93
  4. Step 4: Simplify right side
    12,127.60x = 69,274,509.91
  5. Step 5: Solve for x
    x = 69,274,509.91/12,127.60
  6. Step 6: Final answer
    x = 5,712.14

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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.