Home / 12,747.10-19,124.70-5,724.40

Finding the Fourth Proportional to 12,747.10, 19,124.70 and 5,724.40

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Solution

The fourth proportional to 12,747.10, 19,124.70 and 5,724.40 is: 8,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.10 : 19,124.70 = 5,724.40 : x
  2. Step 2: Convert to fraction form
    12,747.10/19,124.70 = 5,724.40/x
  3. Step 3: Cross multiply
    12,747.10x = 19,124.70 × 5,724.40
  4. Step 4: Simplify right side
    12,747.10x = 109,477,432.68
  5. Step 5: Solve for x
    x = 109,477,432.68/12,747.10
  6. Step 6: Final answer
    x = 8,588.42

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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.