Home / 10,913.59-15,062.56-6,438.44

Finding the Fourth Proportional to 10,913.59, 15,062.56 and 6,438.44

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Solution

The fourth proportional to 10,913.59, 15,062.56 and 6,438.44 is: 8,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.59 : 15,062.56 = 6,438.44 : x
  2. Step 2: Convert to fraction form
    10,913.59/15,062.56 = 6,438.44/x
  3. Step 3: Cross multiply
    10,913.59x = 15,062.56 × 6,438.44
  4. Step 4: Simplify right side
    10,913.59x = 96,979,297.40
  5. Step 5: Solve for x
    x = 96,979,297.40/10,913.59
  6. Step 6: Final answer
    x = 8,886.11

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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.