Home / 19,615.18-29,428.92-6,476.78

Finding the Fourth Proportional to 19,615.18, 29,428.92 and 6,476.78

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Solution

The fourth proportional to 19,615.18, 29,428.92 and 6,476.78 is: 9,717.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.18 : 29,428.92 = 6,476.78 : x
  2. Step 2: Convert to fraction form
    19,615.18/29,428.92 = 6,476.78/x
  3. Step 3: Cross multiply
    19,615.18x = 29,428.92 × 6,476.78
  4. Step 4: Simplify right side
    19,615.18x = 190,604,493.33
  5. Step 5: Solve for x
    x = 190,604,493.33/19,615.18
  6. Step 6: Final answer
    x = 9,717.19

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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.