Home / 11,316.29-15,617.43-6,281.55

Finding the Fourth Proportional to 11,316.29, 15,617.43 and 6,281.55

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Solution

The fourth proportional to 11,316.29, 15,617.43 and 6,281.55 is: 8,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.29 : 15,617.43 = 6,281.55 : x
  2. Step 2: Convert to fraction form
    11,316.29/15,617.43 = 6,281.55/x
  3. Step 3: Cross multiply
    11,316.29x = 15,617.43 × 6,281.55
  4. Step 4: Simplify right side
    11,316.29x = 98,101,667.42
  5. Step 5: Solve for x
    x = 98,101,667.42/11,316.29
  6. Step 6: Final answer
    x = 8,669.07

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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.