Home / 11,146.81-15,384.17-6,899.23

Finding the Fourth Proportional to 11,146.81, 15,384.17 and 6,899.23

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Solution

The fourth proportional to 11,146.81, 15,384.17 and 6,899.23 is: 9,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.81 : 15,384.17 = 6,899.23 : x
  2. Step 2: Convert to fraction form
    11,146.81/15,384.17 = 6,899.23/x
  3. Step 3: Cross multiply
    11,146.81x = 15,384.17 × 6,899.23
  4. Step 4: Simplify right side
    11,146.81x = 106,138,892.69
  5. Step 5: Solve for x
    x = 106,138,892.69/11,146.81
  6. Step 6: Final answer
    x = 9,521.91

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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.