Home / 15,390.12-23,088.78-6,625.92

Finding the Fourth Proportional to 15,390.12, 23,088.78 and 6,625.92

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Solution

The fourth proportional to 15,390.12, 23,088.78 and 6,625.92 is: 9,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.12 : 23,088.78 = 6,625.92 : x
  2. Step 2: Convert to fraction form
    15,390.12/23,088.78 = 6,625.92/x
  3. Step 3: Cross multiply
    15,390.12x = 23,088.78 × 6,625.92
  4. Step 4: Simplify right side
    15,390.12x = 152,984,409.18
  5. Step 5: Solve for x
    x = 152,984,409.18/15,390.12
  6. Step 6: Final answer
    x = 9,940.43

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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.