Home / 8,690.28-13,010.56-5,762.76

Finding the Fourth Proportional to 8,690.28, 13,010.56 and 5,762.76

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Solution

The fourth proportional to 8,690.28, 13,010.56 and 5,762.76 is: 8,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.28 : 13,010.56 = 5,762.76 : x
  2. Step 2: Convert to fraction form
    8,690.28/13,010.56 = 5,762.76/x
  3. Step 3: Cross multiply
    8,690.28x = 13,010.56 × 5,762.76
  4. Step 4: Simplify right side
    8,690.28x = 74,976,734.75
  5. Step 5: Solve for x
    x = 74,976,734.75/8,690.28
  6. Step 6: Final answer
    x = 8,627.65

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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.