Home / 15,230.42-21,017.92-8,516.02

Finding the Fourth Proportional to 15,230.42, 21,017.92 and 8,516.02

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Solution

The fourth proportional to 15,230.42, 21,017.92 and 8,516.02 is: 11,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.42 : 21,017.92 = 8,516.02 : x
  2. Step 2: Convert to fraction form
    15,230.42/21,017.92 = 8,516.02/x
  3. Step 3: Cross multiply
    15,230.42x = 21,017.92 × 8,516.02
  4. Step 4: Simplify right side
    15,230.42x = 178,989,027.08
  5. Step 5: Solve for x
    x = 178,989,027.08/15,230.42
  6. Step 6: Final answer
    x = 11,752.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.