Home / 10,975.50-15,146.19-6,259.88

Finding the Fourth Proportional to 10,975.50, 15,146.19 and 6,259.88

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Solution

The fourth proportional to 10,975.50, 15,146.19 and 6,259.88 is: 8,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.50 : 15,146.19 = 6,259.88 : x
  2. Step 2: Convert to fraction form
    10,975.50/15,146.19 = 6,259.88/x
  3. Step 3: Cross multiply
    10,975.50x = 15,146.19 × 6,259.88
  4. Step 4: Simplify right side
    10,975.50x = 94,813,369.72
  5. Step 5: Solve for x
    x = 94,813,369.72/10,975.50
  6. Step 6: Final answer
    x = 8,638.64

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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.