Home / 10,964.53-15,129.93-6,487.39

Finding the Fourth Proportional to 10,964.53, 15,129.93 and 6,487.39

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Solution

The fourth proportional to 10,964.53, 15,129.93 and 6,487.39 is: 8,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.53 : 15,129.93 = 6,487.39 : x
  2. Step 2: Convert to fraction form
    10,964.53/15,129.93 = 6,487.39/x
  3. Step 3: Cross multiply
    10,964.53x = 15,129.93 × 6,487.39
  4. Step 4: Simplify right side
    10,964.53x = 98,153,756.58
  5. Step 5: Solve for x
    x = 98,153,756.58/10,964.53
  6. Step 6: Final answer
    x = 8,951.93

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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.