Home / 11,531.04-15,908.40-7,280.88

Finding the Fourth Proportional to 11,531.04, 15,908.40 and 7,280.88

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Solution

The fourth proportional to 11,531.04, 15,908.40 and 7,280.88 is: 10,044.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.04 : 15,908.40 = 7,280.88 : x
  2. Step 2: Convert to fraction form
    11,531.04/15,908.40 = 7,280.88/x
  3. Step 3: Cross multiply
    11,531.04x = 15,908.40 × 7,280.88
  4. Step 4: Simplify right side
    11,531.04x = 115,827,151.39
  5. Step 5: Solve for x
    x = 115,827,151.39/11,531.04
  6. Step 6: Final answer
    x = 10,044.81

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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.