Home / 11,373.36-15,681.52-9,487.68

Finding the Fourth Proportional to 11,373.36, 15,681.52 and 9,487.68

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Solution

The fourth proportional to 11,373.36, 15,681.52 and 9,487.68 is: 13,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,373.36 : 15,681.52 = 9,487.68 : x
  2. Step 2: Convert to fraction form
    11,373.36/15,681.52 = 9,487.68/x
  3. Step 3: Cross multiply
    11,373.36x = 15,681.52 × 9,487.68
  4. Step 4: Simplify right side
    11,373.36x = 148,781,243.67
  5. Step 5: Solve for x
    x = 148,781,243.67/11,373.36
  6. Step 6: Final answer
    x = 13,081.56

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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.