Home / 7,154.15-9,872.55-3,967.46

Finding the Fourth Proportional to 7,154.15, 9,872.55 and 3,967.46

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Solution

The fourth proportional to 7,154.15, 9,872.55 and 3,967.46 is: 5,475.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.15 : 9,872.55 = 3,967.46 : x
  2. Step 2: Convert to fraction form
    7,154.15/9,872.55 = 3,967.46/x
  3. Step 3: Cross multiply
    7,154.15x = 9,872.55 × 3,967.46
  4. Step 4: Simplify right side
    7,154.15x = 39,168,947.22
  5. Step 5: Solve for x
    x = 39,168,947.22/7,154.15
  6. Step 6: Final answer
    x = 5,475.00

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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.