Home / 14,876.40-20,529.65-8,161.91

Finding the Fourth Proportional to 14,876.40, 20,529.65 and 8,161.91

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Solution

The fourth proportional to 14,876.40, 20,529.65 and 8,161.91 is: 11,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,876.40 : 20,529.65 = 8,161.91 : x
  2. Step 2: Convert to fraction form
    14,876.40/20,529.65 = 8,161.91/x
  3. Step 3: Cross multiply
    14,876.40x = 20,529.65 × 8,161.91
  4. Step 4: Simplify right side
    14,876.40x = 167,561,012.17
  5. Step 5: Solve for x
    x = 167,561,012.17/14,876.40
  6. Step 6: Final answer
    x = 11,263.55

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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.