Home / 6,990.18-10,488.90-6,586.80

Finding the Fourth Proportional to 6,990.18, 10,488.90 and 6,586.80

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Solution

The fourth proportional to 6,990.18, 10,488.90 and 6,586.80 is: 9,883.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.18 : 10,488.90 = 6,586.80 : x
  2. Step 2: Convert to fraction form
    6,990.18/10,488.90 = 6,586.80/x
  3. Step 3: Cross multiply
    6,990.18x = 10,488.90 × 6,586.80
  4. Step 4: Simplify right side
    6,990.18x = 69,088,286.52
  5. Step 5: Solve for x
    x = 69,088,286.52/6,990.18
  6. Step 6: Final answer
    x = 9,883.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.