Home / 15,282.28-21,088.78-8,994.25

Finding the Fourth Proportional to 15,282.28, 21,088.78 and 8,994.25

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Solution

The fourth proportional to 15,282.28, 21,088.78 and 8,994.25 is: 12,411.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.28 : 21,088.78 = 8,994.25 : x
  2. Step 2: Convert to fraction form
    15,282.28/21,088.78 = 8,994.25/x
  3. Step 3: Cross multiply
    15,282.28x = 21,088.78 × 8,994.25
  4. Step 4: Simplify right side
    15,282.28x = 189,677,759.52
  5. Step 5: Solve for x
    x = 189,677,759.52/15,282.28
  6. Step 6: Final answer
    x = 12,411.61

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1.5x scale

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.