Home / 19,519.53-29,280.60-6,867.78

Finding the Fourth Proportional to 19,519.53, 29,280.60 and 6,867.78

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Solution

The fourth proportional to 19,519.53, 29,280.60 and 6,867.78 is: 10,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.53 : 29,280.60 = 6,867.78 : x
  2. Step 2: Convert to fraction form
    19,519.53/29,280.60 = 6,867.78/x
  3. Step 3: Cross multiply
    19,519.53x = 29,280.60 × 6,867.78
  4. Step 4: Simplify right side
    19,519.53x = 201,092,719.07
  5. Step 5: Solve for x
    x = 201,092,719.07/19,519.53
  6. Step 6: Final answer
    x = 10,302.13

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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.