Home / 8,270.71-11,412.49-5,085.65

Finding the Fourth Proportional to 8,270.71, 11,412.49 and 5,085.65

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Solution

The fourth proportional to 8,270.71, 11,412.49 and 5,085.65 is: 7,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.71 : 11,412.49 = 5,085.65 : x
  2. Step 2: Convert to fraction form
    8,270.71/11,412.49 = 5,085.65/x
  3. Step 3: Cross multiply
    8,270.71x = 11,412.49 × 5,085.65
  4. Step 4: Simplify right side
    8,270.71x = 58,039,929.77
  5. Step 5: Solve for x
    x = 58,039,929.77/8,270.71
  6. Step 6: Final answer
    x = 7,017.53

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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.