Home / 13,482.47-20,223.75-4,122.45

Finding the Fourth Proportional to 13,482.47, 20,223.75 and 4,122.45

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Solution

The fourth proportional to 13,482.47, 20,223.75 and 4,122.45 is: 6,183.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.47 : 20,223.75 = 4,122.45 : x
  2. Step 2: Convert to fraction form
    13,482.47/20,223.75 = 4,122.45/x
  3. Step 3: Cross multiply
    13,482.47x = 20,223.75 × 4,122.45
  4. Step 4: Simplify right side
    13,482.47x = 83,371,398.19
  5. Step 5: Solve for x
    x = 83,371,398.19/13,482.47
  6. Step 6: Final answer
    x = 6,183.69

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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.