Home / 19,113.84-28,632.36-8,711.28

Finding the Fourth Proportional to 19,113.84, 28,632.36 and 8,711.28

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Solution

The fourth proportional to 19,113.84, 28,632.36 and 8,711.28 is: 13,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.84 : 28,632.36 = 8,711.28 : x
  2. Step 2: Convert to fraction form
    19,113.84/28,632.36 = 8,711.28/x
  3. Step 3: Cross multiply
    19,113.84x = 28,632.36 × 8,711.28
  4. Step 4: Simplify right side
    19,113.84x = 249,424,505.02
  5. Step 5: Solve for x
    x = 249,424,505.02/19,113.84
  6. Step 6: Final answer
    x = 13,049.42

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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.