Home / 10,331.13-14,256.85-5,615.43

Finding the Fourth Proportional to 10,331.13, 14,256.85 and 5,615.43

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Solution

The fourth proportional to 10,331.13, 14,256.85 and 5,615.43 is: 7,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.13 : 14,256.85 = 5,615.43 : x
  2. Step 2: Convert to fraction form
    10,331.13/14,256.85 = 5,615.43/x
  3. Step 3: Cross multiply
    10,331.13x = 14,256.85 × 5,615.43
  4. Step 4: Simplify right side
    10,331.13x = 80,058,343.20
  5. Step 5: Solve for x
    x = 80,058,343.20/10,331.13
  6. Step 6: Final answer
    x = 7,749.23

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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.