Home / 10,331.06-14,256.90-5,615.30

Finding the Fourth Proportional to 10,331.06, 14,256.90 and 5,615.30

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Solution

The fourth proportional to 10,331.06, 14,256.90 and 5,615.30 is: 7,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.06 : 14,256.90 = 5,615.30 : x
  2. Step 2: Convert to fraction form
    10,331.06/14,256.90 = 5,615.30/x
  3. Step 3: Cross multiply
    10,331.06x = 14,256.90 × 5,615.30
  4. Step 4: Simplify right side
    10,331.06x = 80,056,770.57
  5. Step 5: Solve for x
    x = 80,056,770.57/10,331.06
  6. Step 6: Final answer
    x = 7,749.13

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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.