Home / 15,451.88-21,319.77-8,737.37

Finding the Fourth Proportional to 15,451.88, 21,319.77 and 8,737.37

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Solution

The fourth proportional to 15,451.88, 21,319.77 and 8,737.37 is: 12,055.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.88 : 21,319.77 = 8,737.37 : x
  2. Step 2: Convert to fraction form
    15,451.88/21,319.77 = 8,737.37/x
  3. Step 3: Cross multiply
    15,451.88x = 21,319.77 × 8,737.37
  4. Step 4: Simplify right side
    15,451.88x = 186,278,612.21
  5. Step 5: Solve for x
    x = 186,278,612.21/15,451.88
  6. Step 6: Final answer
    x = 12,055.41

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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.