Home / 19,011.56-28,517.35-5,160.56

Finding the Fourth Proportional to 19,011.56, 28,517.35 and 5,160.56

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Solution

The fourth proportional to 19,011.56, 28,517.35 and 5,160.56 is: 7,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.56 : 28,517.35 = 5,160.56 : x
  2. Step 2: Convert to fraction form
    19,011.56/28,517.35 = 5,160.56/x
  3. Step 3: Cross multiply
    19,011.56x = 28,517.35 × 5,160.56
  4. Step 4: Simplify right side
    19,011.56x = 147,165,554.11
  5. Step 5: Solve for x
    x = 147,165,554.11/19,011.56
  6. Step 6: Final answer
    x = 7,740.84

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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.