Home / 9,180.56-12,669.28-4,988.81

Finding the Fourth Proportional to 9,180.56, 12,669.28 and 4,988.81

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Solution

The fourth proportional to 9,180.56, 12,669.28 and 4,988.81 is: 6,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.56 : 12,669.28 = 4,988.81 : x
  2. Step 2: Convert to fraction form
    9,180.56/12,669.28 = 4,988.81/x
  3. Step 3: Cross multiply
    9,180.56x = 12,669.28 × 4,988.81
  4. Step 4: Simplify right side
    9,180.56x = 63,204,649.96
  5. Step 5: Solve for x
    x = 63,204,649.96/9,180.56
  6. Step 6: Final answer
    x = 6,884.62

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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.