Home / 13,549.60-18,698.40-7,581.28

Finding the Fourth Proportional to 13,549.60, 18,698.40 and 7,581.28

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Solution

The fourth proportional to 13,549.60, 18,698.40 and 7,581.28 is: 10,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.60 : 18,698.40 = 7,581.28 : x
  2. Step 2: Convert to fraction form
    13,549.60/18,698.40 = 7,581.28/x
  3. Step 3: Cross multiply
    13,549.60x = 18,698.40 × 7,581.28
  4. Step 4: Simplify right side
    13,549.60x = 141,757,805.95
  5. Step 5: Solve for x
    x = 141,757,805.95/13,549.60
  6. Step 6: Final answer
    x = 10,462.14

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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.