Home / 10,031.87-13,845.60-6,505.34

Finding the Fourth Proportional to 10,031.87, 13,845.60 and 6,505.34

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Solution

The fourth proportional to 10,031.87, 13,845.60 and 6,505.34 is: 8,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.87 : 13,845.60 = 6,505.34 : x
  2. Step 2: Convert to fraction form
    10,031.87/13,845.60 = 6,505.34/x
  3. Step 3: Cross multiply
    10,031.87x = 13,845.60 × 6,505.34
  4. Step 4: Simplify right side
    10,031.87x = 90,070,266.28
  5. Step 5: Solve for x
    x = 90,070,266.28/10,031.87
  6. Step 6: Final answer
    x = 8,978.41

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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.