Home / 10,869.53-15,001.82-6,393.47

Finding the Fourth Proportional to 10,869.53, 15,001.82 and 6,393.47

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Solution

The fourth proportional to 10,869.53, 15,001.82 and 6,393.47 is: 8,824.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.53 : 15,001.82 = 6,393.47 : x
  2. Step 2: Convert to fraction form
    10,869.53/15,001.82 = 6,393.47/x
  3. Step 3: Cross multiply
    10,869.53x = 15,001.82 × 6,393.47
  4. Step 4: Simplify right side
    10,869.53x = 95,913,579.14
  5. Step 5: Solve for x
    x = 95,913,579.14/10,869.53
  6. Step 6: Final answer
    x = 8,824.08

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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.