Home / 15,431.50-23,116.28-7,099.90

Finding the Fourth Proportional to 15,431.50, 23,116.28 and 7,099.90

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Solution

The fourth proportional to 15,431.50, 23,116.28 and 7,099.90 is: 10,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.50 : 23,116.28 = 7,099.90 : x
  2. Step 2: Convert to fraction form
    15,431.50/23,116.28 = 7,099.90/x
  3. Step 3: Cross multiply
    15,431.50x = 23,116.28 × 7,099.90
  4. Step 4: Simplify right side
    15,431.50x = 164,123,276.37
  5. Step 5: Solve for x
    x = 164,123,276.37/15,431.50
  6. Step 6: Final answer
    x = 10,635.60

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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.