Home / 10,863.18-14,990.67-6,670.62

Finding the Fourth Proportional to 10,863.18, 14,990.67 and 6,670.62

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Solution

The fourth proportional to 10,863.18, 14,990.67 and 6,670.62 is: 9,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.18 : 14,990.67 = 6,670.62 : x
  2. Step 2: Convert to fraction form
    10,863.18/14,990.67 = 6,670.62/x
  3. Step 3: Cross multiply
    10,863.18x = 14,990.67 × 6,670.62
  4. Step 4: Simplify right side
    10,863.18x = 99,997,063.12
  5. Step 5: Solve for x
    x = 99,997,063.12/10,863.18
  6. Step 6: Final answer
    x = 9,205.14

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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.