Home / 15,187.30-20,987.42-10,952.26

Finding the Fourth Proportional to 15,187.30, 20,987.42 and 10,952.26

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Solution

The fourth proportional to 15,187.30, 20,987.42 and 10,952.26 is: 15,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.30 : 20,987.42 = 10,952.26 : x
  2. Step 2: Convert to fraction form
    15,187.30/20,987.42 = 10,952.26/x
  3. Step 3: Cross multiply
    15,187.30x = 20,987.42 × 10,952.26
  4. Step 4: Simplify right side
    15,187.30x = 229,859,573.34
  5. Step 5: Solve for x
    x = 229,859,573.34/15,187.30
  6. Step 6: Final answer
    x = 15,134.99

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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.