Home / 11,543.47-15,928.77-6,507.57

Finding the Fourth Proportional to 11,543.47, 15,928.77 and 6,507.57

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Solution

The fourth proportional to 11,543.47, 15,928.77 and 6,507.57 is: 8,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.47 : 15,928.77 = 6,507.57 : x
  2. Step 2: Convert to fraction form
    11,543.47/15,928.77 = 6,507.57/x
  3. Step 3: Cross multiply
    11,543.47x = 15,928.77 × 6,507.57
  4. Step 4: Simplify right side
    11,543.47x = 103,657,506.15
  5. Step 5: Solve for x
    x = 103,657,506.15/11,543.47
  6. Step 6: Final answer
    x = 8,979.75

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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.