Home / 11,715.40-17,564.10-5,876.20

Finding the Fourth Proportional to 11,715.40, 17,564.10 and 5,876.20

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Solution

The fourth proportional to 11,715.40, 17,564.10 and 5,876.20 is: 8,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.40 : 17,564.10 = 5,876.20 : x
  2. Step 2: Convert to fraction form
    11,715.40/17,564.10 = 5,876.20/x
  3. Step 3: Cross multiply
    11,715.40x = 17,564.10 × 5,876.20
  4. Step 4: Simplify right side
    11,715.40x = 103,210,164.42
  5. Step 5: Solve for x
    x = 103,210,164.42/11,715.40
  6. Step 6: Final answer
    x = 8,809.79

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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.