Home / 6,986.95-10,478.20-2,306.09

Finding the Fourth Proportional to 6,986.95, 10,478.20 and 2,306.09

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Solution

The fourth proportional to 6,986.95, 10,478.20 and 2,306.09 is: 3,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.95 : 10,478.20 = 2,306.09 : x
  2. Step 2: Convert to fraction form
    6,986.95/10,478.20 = 2,306.09/x
  3. Step 3: Cross multiply
    6,986.95x = 10,478.20 × 2,306.09
  4. Step 4: Simplify right side
    6,986.95x = 24,163,666.47
  5. Step 5: Solve for x
    x = 24,163,666.47/6,986.95
  6. Step 6: Final answer
    x = 3,458.40

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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.