Home / 15,619.13-21,554.75-8,545.55

Finding the Fourth Proportional to 15,619.13, 21,554.75 and 8,545.55

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Solution

The fourth proportional to 15,619.13, 21,554.75 and 8,545.55 is: 11,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.13 : 21,554.75 = 8,545.55 : x
  2. Step 2: Convert to fraction form
    15,619.13/21,554.75 = 8,545.55/x
  3. Step 3: Cross multiply
    15,619.13x = 21,554.75 × 8,545.55
  4. Step 4: Simplify right side
    15,619.13x = 184,197,151.13
  5. Step 5: Solve for x
    x = 184,197,151.13/15,619.13
  6. Step 6: Final answer
    x = 11,793.05

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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.