Home / 12,432.45-18,648.65-3,673.51

Finding the Fourth Proportional to 12,432.45, 18,648.65 and 3,673.51

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Solution

The fourth proportional to 12,432.45, 18,648.65 and 3,673.51 is: 5,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.45 : 18,648.65 = 3,673.51 : x
  2. Step 2: Convert to fraction form
    12,432.45/18,648.65 = 3,673.51/x
  3. Step 3: Cross multiply
    12,432.45x = 18,648.65 × 3,673.51
  4. Step 4: Simplify right side
    12,432.45x = 68,506,002.26
  5. Step 5: Solve for x
    x = 68,506,002.26/12,432.45
  6. Step 6: Final answer
    x = 5,510.26

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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.