Home / 10,206.65-14,086.80-9,539.61

Finding the Fourth Proportional to 10,206.65, 14,086.80 and 9,539.61

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Solution

The fourth proportional to 10,206.65, 14,086.80 and 9,539.61 is: 13,166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.65 : 14,086.80 = 9,539.61 : x
  2. Step 2: Convert to fraction form
    10,206.65/14,086.80 = 9,539.61/x
  3. Step 3: Cross multiply
    10,206.65x = 14,086.80 × 9,539.61
  4. Step 4: Simplify right side
    10,206.65x = 134,382,578.15
  5. Step 5: Solve for x
    x = 134,382,578.15/10,206.65
  6. Step 6: Final answer
    x = 13,166.19

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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.