Home / 15,671.79-23,516.88-5,817.90

Finding the Fourth Proportional to 15,671.79, 23,516.88 and 5,817.90

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Solution

The fourth proportional to 15,671.79, 23,516.88 and 5,817.90 is: 8,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.79 : 23,516.88 = 5,817.90 : x
  2. Step 2: Convert to fraction form
    15,671.79/23,516.88 = 5,817.90/x
  3. Step 3: Cross multiply
    15,671.79x = 23,516.88 × 5,817.90
  4. Step 4: Simplify right side
    15,671.79x = 136,818,856.15
  5. Step 5: Solve for x
    x = 136,818,856.15/15,671.79
  6. Step 6: Final answer
    x = 8,730.26

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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.