Home / 11,585.31-15,987.76-6,280.13

Finding the Fourth Proportional to 11,585.31, 15,987.76 and 6,280.13

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Solution

The fourth proportional to 11,585.31, 15,987.76 and 6,280.13 is: 8,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.31 : 15,987.76 = 6,280.13 : x
  2. Step 2: Convert to fraction form
    11,585.31/15,987.76 = 6,280.13/x
  3. Step 3: Cross multiply
    11,585.31x = 15,987.76 × 6,280.13
  4. Step 4: Simplify right side
    11,585.31x = 100,405,211.21
  5. Step 5: Solve for x
    x = 100,405,211.21/11,585.31
  6. Step 6: Final answer
    x = 8,666.60

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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.