Home / 9,209.04-12,708.81-5,230.05

Finding the Fourth Proportional to 9,209.04, 12,708.81 and 5,230.05

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Solution

The fourth proportional to 9,209.04, 12,708.81 and 5,230.05 is: 7,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.04 : 12,708.81 = 5,230.05 : x
  2. Step 2: Convert to fraction form
    9,209.04/12,708.81 = 5,230.05/x
  3. Step 3: Cross multiply
    9,209.04x = 12,708.81 × 5,230.05
  4. Step 4: Simplify right side
    9,209.04x = 66,467,711.74
  5. Step 5: Solve for x
    x = 66,467,711.74/9,209.04
  6. Step 6: Final answer
    x = 7,217.66

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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.