Home / 10,981.08-15,152.52-6,503.80

Finding the Fourth Proportional to 10,981.08, 15,152.52 and 6,503.80

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Solution

The fourth proportional to 10,981.08, 15,152.52 and 6,503.80 is: 8,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.08 : 15,152.52 = 6,503.80 : x
  2. Step 2: Convert to fraction form
    10,981.08/15,152.52 = 6,503.80/x
  3. Step 3: Cross multiply
    10,981.08x = 15,152.52 × 6,503.80
  4. Step 4: Simplify right side
    10,981.08x = 98,548,959.58
  5. Step 5: Solve for x
    x = 98,548,959.58/10,981.08
  6. Step 6: Final answer
    x = 8,974.43

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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.