Home / 8,652.42-12,971.34-5,143.50

Finding the Fourth Proportional to 8,652.42, 12,971.34 and 5,143.50

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Solution

The fourth proportional to 8,652.42, 12,971.34 and 5,143.50 is: 7,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.42 : 12,971.34 = 5,143.50 : x
  2. Step 2: Convert to fraction form
    8,652.42/12,971.34 = 5,143.50/x
  3. Step 3: Cross multiply
    8,652.42x = 12,971.34 × 5,143.50
  4. Step 4: Simplify right side
    8,652.42x = 66,718,087.29
  5. Step 5: Solve for x
    x = 66,718,087.29/8,652.42
  6. Step 6: Final answer
    x = 7,710.92

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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.