Home / 10,065.12-13,888.96-5,588.80

Finding the Fourth Proportional to 10,065.12, 13,888.96 and 5,588.80

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Solution

The fourth proportional to 10,065.12, 13,888.96 and 5,588.80 is: 7,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.12 : 13,888.96 = 5,588.80 : x
  2. Step 2: Convert to fraction form
    10,065.12/13,888.96 = 5,588.80/x
  3. Step 3: Cross multiply
    10,065.12x = 13,888.96 × 5,588.80
  4. Step 4: Simplify right side
    10,065.12x = 77,622,619.65
  5. Step 5: Solve for x
    x = 77,622,619.65/10,065.12
  6. Step 6: Final answer
    x = 7,712.04

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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.