Home / 7,150.12-9,866.34-4,319.20

Finding the Fourth Proportional to 7,150.12, 9,866.34 and 4,319.20

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Solution

The fourth proportional to 7,150.12, 9,866.34 and 4,319.20 is: 5,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.12 : 9,866.34 = 4,319.20 : x
  2. Step 2: Convert to fraction form
    7,150.12/9,866.34 = 4,319.20/x
  3. Step 3: Cross multiply
    7,150.12x = 9,866.34 × 4,319.20
  4. Step 4: Simplify right side
    7,150.12x = 42,614,695.73
  5. Step 5: Solve for x
    x = 42,614,695.73/7,150.12
  6. Step 6: Final answer
    x = 5,960.00

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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.