Home / 9,316.92-12,858.84-5,489.18

Finding the Fourth Proportional to 9,316.92, 12,858.84 and 5,489.18

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Solution

The fourth proportional to 9,316.92, 12,858.84 and 5,489.18 is: 7,575.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.92 : 12,858.84 = 5,489.18 : x
  2. Step 2: Convert to fraction form
    9,316.92/12,858.84 = 5,489.18/x
  3. Step 3: Cross multiply
    9,316.92x = 12,858.84 × 5,489.18
  4. Step 4: Simplify right side
    9,316.92x = 70,584,423.06
  5. Step 5: Solve for x
    x = 70,584,423.06/9,316.92
  6. Step 6: Final answer
    x = 7,575.94

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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.