Home / 9,210.17-12,709.62-5,231.22

Finding the Fourth Proportional to 9,210.17, 12,709.62 and 5,231.22

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Solution

The fourth proportional to 9,210.17, 12,709.62 and 5,231.22 is: 7,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.17 : 12,709.62 = 5,231.22 : x
  2. Step 2: Convert to fraction form
    9,210.17/12,709.62 = 5,231.22/x
  3. Step 3: Cross multiply
    9,210.17x = 12,709.62 × 5,231.22
  4. Step 4: Simplify right side
    9,210.17x = 66,486,818.34
  5. Step 5: Solve for x
    x = 66,486,818.34/9,210.17
  6. Step 6: Final answer
    x = 7,218.85

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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.