Home / 9,145.62-12,621.33-5,562.99

Finding the Fourth Proportional to 9,145.62, 12,621.33 and 5,562.99

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Solution

The fourth proportional to 9,145.62, 12,621.33 and 5,562.99 is: 7,677.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.62 : 12,621.33 = 5,562.99 : x
  2. Step 2: Convert to fraction form
    9,145.62/12,621.33 = 5,562.99/x
  3. Step 3: Cross multiply
    9,145.62x = 12,621.33 × 5,562.99
  4. Step 4: Simplify right side
    9,145.62x = 70,212,332.58
  5. Step 5: Solve for x
    x = 70,212,332.58/9,145.62
  6. Step 6: Final answer
    x = 7,677.15

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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.