Home / 9,285.32-12,812.91-5,306.42

Finding the Fourth Proportional to 9,285.32, 12,812.91 and 5,306.42

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Solution

The fourth proportional to 9,285.32, 12,812.91 and 5,306.42 is: 7,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.32 : 12,812.91 = 5,306.42 : x
  2. Step 2: Convert to fraction form
    9,285.32/12,812.91 = 5,306.42/x
  3. Step 3: Cross multiply
    9,285.32x = 12,812.91 × 5,306.42
  4. Step 4: Simplify right side
    9,285.32x = 67,990,681.88
  5. Step 5: Solve for x
    x = 67,990,681.88/9,285.32
  6. Step 6: Final answer
    x = 7,322.38

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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.