Home / 10,381.14-15,627.12-9,309.50

Finding the Fourth Proportional to 10,381.14, 15,627.12 and 9,309.50

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Solution

The fourth proportional to 10,381.14, 15,627.12 and 9,309.50 is: 14,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.14 : 15,627.12 = 9,309.50 : x
  2. Step 2: Convert to fraction form
    10,381.14/15,627.12 = 9,309.50/x
  3. Step 3: Cross multiply
    10,381.14x = 15,627.12 × 9,309.50
  4. Step 4: Simplify right side
    10,381.14x = 145,480,673.64
  5. Step 5: Solve for x
    x = 145,480,673.64/10,381.14
  6. Step 6: Final answer
    x = 14,013.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.