Home / 10,955.23-15,118.20-5,987.23

Finding the Fourth Proportional to 10,955.23, 15,118.20 and 5,987.23

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Solution

The fourth proportional to 10,955.23, 15,118.20 and 5,987.23 is: 8,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.23 : 15,118.20 = 5,987.23 : x
  2. Step 2: Convert to fraction form
    10,955.23/15,118.20 = 5,987.23/x
  3. Step 3: Cross multiply
    10,955.23x = 15,118.20 × 5,987.23
  4. Step 4: Simplify right side
    10,955.23x = 90,516,140.59
  5. Step 5: Solve for x
    x = 90,516,140.59/10,955.23
  6. Step 6: Final answer
    x = 8,262.37

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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.