Home / 10,988.48-15,189.02-10,116.58

Finding the Fourth Proportional to 10,988.48, 15,189.02 and 10,116.58

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Solution

The fourth proportional to 10,988.48, 15,189.02 and 10,116.58 is: 13,983.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.48 : 15,189.02 = 10,116.58 : x
  2. Step 2: Convert to fraction form
    10,988.48/15,189.02 = 10,116.58/x
  3. Step 3: Cross multiply
    10,988.48x = 15,189.02 × 10,116.58
  4. Step 4: Simplify right side
    10,988.48x = 153,660,935.95
  5. Step 5: Solve for x
    x = 153,660,935.95/10,988.48
  6. Step 6: Final answer
    x = 13,983.82

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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.