Home / 7,011.92-9,675.74-4,140.20

Finding the Fourth Proportional to 7,011.92, 9,675.74 and 4,140.20

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Solution

The fourth proportional to 7,011.92, 9,675.74 and 4,140.20 is: 5,713.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.92 : 9,675.74 = 4,140.20 : x
  2. Step 2: Convert to fraction form
    7,011.92/9,675.74 = 4,140.20/x
  3. Step 3: Cross multiply
    7,011.92x = 9,675.74 × 4,140.20
  4. Step 4: Simplify right side
    7,011.92x = 40,059,498.75
  5. Step 5: Solve for x
    x = 40,059,498.75/7,011.92
  6. Step 6: Final answer
    x = 5,713.06

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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.