Home / 7,113.12-10,643.64-6,257.76

Finding the Fourth Proportional to 7,113.12, 10,643.64 and 6,257.76

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Solution

The fourth proportional to 7,113.12, 10,643.64 and 6,257.76 is: 9,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.12 : 10,643.64 = 6,257.76 : x
  2. Step 2: Convert to fraction form
    7,113.12/10,643.64 = 6,257.76/x
  3. Step 3: Cross multiply
    7,113.12x = 10,643.64 × 6,257.76
  4. Step 4: Simplify right side
    7,113.12x = 66,605,344.65
  5. Step 5: Solve for x
    x = 66,605,344.65/7,113.12
  6. Step 6: Final answer
    x = 9,363.73

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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.