Home / 12,282.59-18,426.51-4,385.49

Finding the Fourth Proportional to 12,282.59, 18,426.51 and 4,385.49

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Solution

The fourth proportional to 12,282.59, 18,426.51 and 4,385.49 is: 6,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.59 : 18,426.51 = 4,385.49 : x
  2. Step 2: Convert to fraction form
    12,282.59/18,426.51 = 4,385.49/x
  3. Step 3: Cross multiply
    12,282.59x = 18,426.51 × 4,385.49
  4. Step 4: Simplify right side
    12,282.59x = 80,809,275.34
  5. Step 5: Solve for x
    x = 80,809,275.34/12,282.59
  6. Step 6: Final answer
    x = 6,579.17

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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.