Home / 18,317.84-27,478.20-7,223.76

Finding the Fourth Proportional to 18,317.84, 27,478.20 and 7,223.76

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Solution

The fourth proportional to 18,317.84, 27,478.20 and 7,223.76 is: 10,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.84 : 27,478.20 = 7,223.76 : x
  2. Step 2: Convert to fraction form
    18,317.84/27,478.20 = 7,223.76/x
  3. Step 3: Cross multiply
    18,317.84x = 27,478.20 × 7,223.76
  4. Step 4: Simplify right side
    18,317.84x = 198,495,922.03
  5. Step 5: Solve for x
    x = 198,495,922.03/18,317.84
  6. Step 6: Final answer
    x = 10,836.21

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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.