Home / 15,301.04-21,119.92-9,996.72

Finding the Fourth Proportional to 15,301.04, 21,119.92 and 9,996.72

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Solution

The fourth proportional to 15,301.04, 21,119.92 and 9,996.72 is: 13,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.04 : 21,119.92 = 9,996.72 : x
  2. Step 2: Convert to fraction form
    15,301.04/21,119.92 = 9,996.72/x
  3. Step 3: Cross multiply
    15,301.04x = 21,119.92 × 9,996.72
  4. Step 4: Simplify right side
    15,301.04x = 211,129,926.66
  5. Step 5: Solve for x
    x = 211,129,926.66/15,301.04
  6. Step 6: Final answer
    x = 13,798.40

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Double scale
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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.