Home / 9,888.20-14,864.70-6,986.60

Finding the Fourth Proportional to 9,888.20, 14,864.70 and 6,986.60

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Solution

The fourth proportional to 9,888.20, 14,864.70 and 6,986.60 is: 10,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.20 : 14,864.70 = 6,986.60 : x
  2. Step 2: Convert to fraction form
    9,888.20/14,864.70 = 6,986.60/x
  3. Step 3: Cross multiply
    9,888.20x = 14,864.70 × 6,986.60
  4. Step 4: Simplify right side
    9,888.20x = 103,853,713.02
  5. Step 5: Solve for x
    x = 103,853,713.02/9,888.20
  6. Step 6: Final answer
    x = 10,502.79

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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.