Home / 9,316.96-12,857.40-5,125.18

Finding the Fourth Proportional to 9,316.96, 12,857.40 and 5,125.18

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Solution

The fourth proportional to 9,316.96, 12,857.40 and 5,125.18 is: 7,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.96 : 12,857.40 = 5,125.18 : x
  2. Step 2: Convert to fraction form
    9,316.96/12,857.40 = 5,125.18/x
  3. Step 3: Cross multiply
    9,316.96x = 12,857.40 × 5,125.18
  4. Step 4: Simplify right side
    9,316.96x = 65,896,489.33
  5. Step 5: Solve for x
    x = 65,896,489.33/9,316.96
  6. Step 6: Final answer
    x = 7,072.75

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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.