Home / 12,837.84-19,220.28-8,442.04

Finding the Fourth Proportional to 12,837.84, 19,220.28 and 8,442.04

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Solution

The fourth proportional to 12,837.84, 19,220.28 and 8,442.04 is: 12,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.84 : 19,220.28 = 8,442.04 : x
  2. Step 2: Convert to fraction form
    12,837.84/19,220.28 = 8,442.04/x
  3. Step 3: Cross multiply
    12,837.84x = 19,220.28 × 8,442.04
  4. Step 4: Simplify right side
    12,837.84x = 162,258,372.57
  5. Step 5: Solve for x
    x = 162,258,372.57/12,837.84
  6. Step 6: Final answer
    x = 12,639.07

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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.