Home / 19,152.18-28,742.31-12,576.06

Finding the Fourth Proportional to 19,152.18, 28,742.31 and 12,576.06

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Solution

The fourth proportional to 19,152.18, 28,742.31 and 12,576.06 is: 18,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.18 : 28,742.31 = 12,576.06 : x
  2. Step 2: Convert to fraction form
    19,152.18/28,742.31 = 12,576.06/x
  3. Step 3: Cross multiply
    19,152.18x = 28,742.31 × 12,576.06
  4. Step 4: Simplify right side
    19,152.18x = 361,465,015.10
  5. Step 5: Solve for x
    x = 361,465,015.10/19,152.18
  6. Step 6: Final answer
    x = 18,873.31

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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.