Home / 8,895.63-12,278.55-5,121.46

Finding the Fourth Proportional to 8,895.63, 12,278.55 and 5,121.46

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Solution

The fourth proportional to 8,895.63, 12,278.55 and 5,121.46 is: 7,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.63 : 12,278.55 = 5,121.46 : x
  2. Step 2: Convert to fraction form
    8,895.63/12,278.55 = 5,121.46/x
  3. Step 3: Cross multiply
    8,895.63x = 12,278.55 × 5,121.46
  4. Step 4: Simplify right side
    8,895.63x = 62,884,102.68
  5. Step 5: Solve for x
    x = 62,884,102.68/8,895.63
  6. Step 6: Final answer
    x = 7,069.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.