Home / 10,581.42-15,811.39-8,068.80

Finding the Fourth Proportional to 10,581.42, 15,811.39 and 8,068.80

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Solution

The fourth proportional to 10,581.42, 15,811.39 and 8,068.80 is: 12,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.42 : 15,811.39 = 8,068.80 : x
  2. Step 2: Convert to fraction form
    10,581.42/15,811.39 = 8,068.80/x
  3. Step 3: Cross multiply
    10,581.42x = 15,811.39 × 8,068.80
  4. Step 4: Simplify right side
    10,581.42x = 127,578,943.63
  5. Step 5: Solve for x
    x = 127,578,943.63/10,581.42
  6. Step 6: Final answer
    x = 12,056.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.