Home / 15,109.80-22,664.70-8,111.40

Finding the Fourth Proportional to 15,109.80, 22,664.70 and 8,111.40

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Solution

The fourth proportional to 15,109.80, 22,664.70 and 8,111.40 is: 12,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.80 : 22,664.70 = 8,111.40 : x
  2. Step 2: Convert to fraction form
    15,109.80/22,664.70 = 8,111.40/x
  3. Step 3: Cross multiply
    15,109.80x = 22,664.70 × 8,111.40
  4. Step 4: Simplify right side
    15,109.80x = 183,842,447.58
  5. Step 5: Solve for x
    x = 183,842,447.58/15,109.80
  6. Step 6: Final answer
    x = 12,167.10

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1.5x scale

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.