Home / 15,306.01-21,116.86-10,003.88

Finding the Fourth Proportional to 15,306.01, 21,116.86 and 10,003.88

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Solution

The fourth proportional to 15,306.01, 21,116.86 and 10,003.88 is: 13,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.01 : 21,116.86 = 10,003.88 : x
  2. Step 2: Convert to fraction form
    15,306.01/21,116.86 = 10,003.88/x
  3. Step 3: Cross multiply
    15,306.01x = 21,116.86 × 10,003.88
  4. Step 4: Simplify right side
    15,306.01x = 211,250,561.20
  5. Step 5: Solve for x
    x = 211,250,561.20/15,306.01
  6. Step 6: Final answer
    x = 13,801.81

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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.