Home / 15,987.86-22,039.56-10,322.18

Finding the Fourth Proportional to 15,987.86, 22,039.56 and 10,322.18

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Solution

The fourth proportional to 15,987.86, 22,039.56 and 10,322.18 is: 14,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.86 : 22,039.56 = 10,322.18 : x
  2. Step 2: Convert to fraction form
    15,987.86/22,039.56 = 10,322.18/x
  3. Step 3: Cross multiply
    15,987.86x = 22,039.56 × 10,322.18
  4. Step 4: Simplify right side
    15,987.86x = 227,496,305.44
  5. Step 5: Solve for x
    x = 227,496,305.44/15,987.86
  6. Step 6: Final answer
    x = 14,229.32

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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.