Home / 15,210.28-20,989.95-8,496

Finding the Fourth Proportional to 15,210.28, 20,989.95 and 8,496

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Solution

The fourth proportional to 15,210.28, 20,989.95 and 8,496 is: 11,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.28 : 20,989.95 = 8,496 : x
  2. Step 2: Convert to fraction form
    15,210.28/20,989.95 = 8,496/x
  3. Step 3: Cross multiply
    15,210.28x = 20,989.95 × 8,496
  4. Step 4: Simplify right side
    15,210.28x = 178,330,615.20
  5. Step 5: Solve for x
    x = 178,330,615.20/15,210.28
  6. Step 6: Final answer
    x = 11,724.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.