Home / 13,557.84-20,338.20-4,792.56

Finding the Fourth Proportional to 13,557.84, 20,338.20 and 4,792.56

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Solution

The fourth proportional to 13,557.84, 20,338.20 and 4,792.56 is: 7,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.84 : 20,338.20 = 4,792.56 : x
  2. Step 2: Convert to fraction form
    13,557.84/20,338.20 = 4,792.56/x
  3. Step 3: Cross multiply
    13,557.84x = 20,338.20 × 4,792.56
  4. Step 4: Simplify right side
    13,557.84x = 97,472,043.79
  5. Step 5: Solve for x
    x = 97,472,043.79/13,557.84
  6. Step 6: Final answer
    x = 7,189.35

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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.