Home / 13,036.24-17,990.10-7,068

Finding the Fourth Proportional to 13,036.24, 17,990.10 and 7,068

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Solution

The fourth proportional to 13,036.24, 17,990.10 and 7,068 is: 9,753.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.24 : 17,990.10 = 7,068 : x
  2. Step 2: Convert to fraction form
    13,036.24/17,990.10 = 7,068/x
  3. Step 3: Cross multiply
    13,036.24x = 17,990.10 × 7,068
  4. Step 4: Simplify right side
    13,036.24x = 127,154,026.80
  5. Step 5: Solve for x
    x = 127,154,026.80/13,036.24
  6. Step 6: Final answer
    x = 9,753.89

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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.