Home / 11,382.30-15,707.67-6,347.10

Finding the Fourth Proportional to 11,382.30, 15,707.67 and 6,347.10

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Solution

The fourth proportional to 11,382.30, 15,707.67 and 6,347.10 is: 8,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.30 : 15,707.67 = 6,347.10 : x
  2. Step 2: Convert to fraction form
    11,382.30/15,707.67 = 6,347.10/x
  3. Step 3: Cross multiply
    11,382.30x = 15,707.67 × 6,347.10
  4. Step 4: Simplify right side
    11,382.30x = 99,698,152.26
  5. Step 5: Solve for x
    x = 99,698,152.26/11,382.30
  6. Step 6: Final answer
    x = 8,759.05

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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.