Home / 15,442.65-21,310.85-8,369.07

Finding the Fourth Proportional to 15,442.65, 21,310.85 and 8,369.07

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Solution

The fourth proportional to 15,442.65, 21,310.85 and 8,369.07 is: 11,549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.65 : 21,310.85 = 8,369.07 : x
  2. Step 2: Convert to fraction form
    15,442.65/21,310.85 = 8,369.07/x
  3. Step 3: Cross multiply
    15,442.65x = 21,310.85 × 8,369.07
  4. Step 4: Simplify right side
    15,442.65x = 178,352,009.21
  5. Step 5: Solve for x
    x = 178,352,009.21/15,442.65
  6. Step 6: Final answer
    x = 11,549.31

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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.