Home / 15,172.84-22,767.90-12,114.28

Finding the Fourth Proportional to 15,172.84, 22,767.90 and 12,114.28

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Solution

The fourth proportional to 15,172.84, 22,767.90 and 12,114.28 is: 18,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.84 : 22,767.90 = 12,114.28 : x
  2. Step 2: Convert to fraction form
    15,172.84/22,767.90 = 12,114.28/x
  3. Step 3: Cross multiply
    15,172.84x = 22,767.90 × 12,114.28
  4. Step 4: Simplify right side
    15,172.84x = 275,816,715.61
  5. Step 5: Solve for x
    x = 275,816,715.61/15,172.84
  6. Step 6: Final answer
    x = 18,178.32

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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.