Home / 8,538.87-12,810.21-2,616.58

Finding the Fourth Proportional to 8,538.87, 12,810.21 and 2,616.58

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Solution

The fourth proportional to 8,538.87, 12,810.21 and 2,616.58 is: 3,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.87 : 12,810.21 = 2,616.58 : x
  2. Step 2: Convert to fraction form
    8,538.87/12,810.21 = 2,616.58/x
  3. Step 3: Cross multiply
    8,538.87x = 12,810.21 × 2,616.58
  4. Step 4: Simplify right side
    8,538.87x = 33,518,945.48
  5. Step 5: Solve for x
    x = 33,518,945.48/8,538.87
  6. Step 6: Final answer
    x = 3,925.45

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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.