Home / 14,166.80-21,253.40-8,320.40

Finding the Fourth Proportional to 14,166.80, 21,253.40 and 8,320.40

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Solution

The fourth proportional to 14,166.80, 21,253.40 and 8,320.40 is: 12,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,166.80 : 21,253.40 = 8,320.40 : x
  2. Step 2: Convert to fraction form
    14,166.80/21,253.40 = 8,320.40/x
  3. Step 3: Cross multiply
    14,166.80x = 21,253.40 × 8,320.40
  4. Step 4: Simplify right side
    14,166.80x = 176,836,789.36
  5. Step 5: Solve for x
    x = 176,836,789.36/14,166.80
  6. Step 6: Final answer
    x = 12,482.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.