Home / 11,127.81-15,358.10-6,347.77

Finding the Fourth Proportional to 11,127.81, 15,358.10 and 6,347.77

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Solution

The fourth proportional to 11,127.81, 15,358.10 and 6,347.77 is: 8,760.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.81 : 15,358.10 = 6,347.77 : x
  2. Step 2: Convert to fraction form
    11,127.81/15,358.10 = 6,347.77/x
  3. Step 3: Cross multiply
    11,127.81x = 15,358.10 × 6,347.77
  4. Step 4: Simplify right side
    11,127.81x = 97,489,686.44
  5. Step 5: Solve for x
    x = 97,489,686.44/11,127.81
  6. Step 6: Final answer
    x = 8,760.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.