Home / 12,710.28-19,065.15-4,390.03

Finding the Fourth Proportional to 12,710.28, 19,065.15 and 4,390.03

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Solution

The fourth proportional to 12,710.28, 19,065.15 and 4,390.03 is: 6,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.28 : 19,065.15 = 4,390.03 : x
  2. Step 2: Convert to fraction form
    12,710.28/19,065.15 = 4,390.03/x
  3. Step 3: Cross multiply
    12,710.28x = 19,065.15 × 4,390.03
  4. Step 4: Simplify right side
    12,710.28x = 83,696,532.79
  5. Step 5: Solve for x
    x = 83,696,532.79/12,710.28
  6. Step 6: Final answer
    x = 6,584.95

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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.