Home / 15,351.27-21,184.79-9,064.05

Finding the Fourth Proportional to 15,351.27, 21,184.79 and 9,064.05

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Solution

The fourth proportional to 15,351.27, 21,184.79 and 9,064.05 is: 12,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.27 : 21,184.79 = 9,064.05 : x
  2. Step 2: Convert to fraction form
    15,351.27/21,184.79 = 9,064.05/x
  3. Step 3: Cross multiply
    15,351.27x = 21,184.79 × 9,064.05
  4. Step 4: Simplify right side
    15,351.27x = 192,019,950.48
  5. Step 5: Solve for x
    x = 192,019,950.48/15,351.27
  6. Step 6: Final answer
    x = 12,508.41

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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.