Home / 10,915.64-16,373.46-3,124.48

Finding the Fourth Proportional to 10,915.64, 16,373.46 and 3,124.48

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Solution

The fourth proportional to 10,915.64, 16,373.46 and 3,124.48 is: 4,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.64 : 16,373.46 = 3,124.48 : x
  2. Step 2: Convert to fraction form
    10,915.64/16,373.46 = 3,124.48/x
  3. Step 3: Cross multiply
    10,915.64x = 16,373.46 × 3,124.48
  4. Step 4: Simplify right side
    10,915.64x = 51,158,548.30
  5. Step 5: Solve for x
    x = 51,158,548.30/10,915.64
  6. Step 6: Final answer
    x = 4,686.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.