Home / 19,574.75-29,355.84-8,478.56

Finding the Fourth Proportional to 19,574.75, 29,355.84 and 8,478.56

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Solution

The fourth proportional to 19,574.75, 29,355.84 and 8,478.56 is: 12,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,574.75 : 29,355.84 = 8,478.56 : x
  2. Step 2: Convert to fraction form
    19,574.75/29,355.84 = 8,478.56/x
  3. Step 3: Cross multiply
    19,574.75x = 29,355.84 × 8,478.56
  4. Step 4: Simplify right side
    19,574.75x = 248,895,104.01
  5. Step 5: Solve for x
    x = 248,895,104.01/19,574.75
  6. Step 6: Final answer
    x = 12,715.11

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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.