Home / 9,986.10-14,979.15-6,875.70

Finding the Fourth Proportional to 9,986.10, 14,979.15 and 6,875.70

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Solution

The fourth proportional to 9,986.10, 14,979.15 and 6,875.70 is: 10,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.10 : 14,979.15 = 6,875.70 : x
  2. Step 2: Convert to fraction form
    9,986.10/14,979.15 = 6,875.70/x
  3. Step 3: Cross multiply
    9,986.10x = 14,979.15 × 6,875.70
  4. Step 4: Simplify right side
    9,986.10x = 102,992,141.66
  5. Step 5: Solve for x
    x = 102,992,141.66/9,986.10
  6. Step 6: Final answer
    x = 10,313.55

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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.