Home / 15,017.48-20,723.44-8,643.80

Finding the Fourth Proportional to 15,017.48, 20,723.44 and 8,643.80

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Solution

The fourth proportional to 15,017.48, 20,723.44 and 8,643.80 is: 11,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.48 : 20,723.44 = 8,643.80 : x
  2. Step 2: Convert to fraction form
    15,017.48/20,723.44 = 8,643.80/x
  3. Step 3: Cross multiply
    15,017.48x = 20,723.44 × 8,643.80
  4. Step 4: Simplify right side
    15,017.48x = 179,129,270.67
  5. Step 5: Solve for x
    x = 179,129,270.67/15,017.48
  6. Step 6: Final answer
    x = 11,928.05

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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.