Home / 15,301.18-21,103.72-11,068.12

Finding the Fourth Proportional to 15,301.18, 21,103.72 and 11,068.12

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Solution

The fourth proportional to 15,301.18, 21,103.72 and 11,068.12 is: 15,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.18 : 21,103.72 = 11,068.12 : x
  2. Step 2: Convert to fraction form
    15,301.18/21,103.72 = 11,068.12/x
  3. Step 3: Cross multiply
    15,301.18x = 21,103.72 × 11,068.12
  4. Step 4: Simplify right side
    15,301.18x = 233,578,505.41
  5. Step 5: Solve for x
    x = 233,578,505.41/15,301.18
  6. Step 6: Final answer
    x = 15,265.39

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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.