Home / 10,915.14-15,062.90-6,199.41

Finding the Fourth Proportional to 10,915.14, 15,062.90 and 6,199.41

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Solution

The fourth proportional to 10,915.14, 15,062.90 and 6,199.41 is: 8,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.14 : 15,062.90 = 6,199.41 : x
  2. Step 2: Convert to fraction form
    10,915.14/15,062.90 = 6,199.41/x
  3. Step 3: Cross multiply
    10,915.14x = 15,062.90 × 6,199.41
  4. Step 4: Simplify right side
    10,915.14x = 93,381,061.89
  5. Step 5: Solve for x
    x = 93,381,061.89/10,915.14
  6. Step 6: Final answer
    x = 8,555.19

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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.