Home / 13,442.65-18,550.03-7,474.10

Finding the Fourth Proportional to 13,442.65, 18,550.03 and 7,474.10

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Solution

The fourth proportional to 13,442.65, 18,550.03 and 7,474.10 is: 10,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.65 : 18,550.03 = 7,474.10 : x
  2. Step 2: Convert to fraction form
    13,442.65/18,550.03 = 7,474.10/x
  3. Step 3: Cross multiply
    13,442.65x = 18,550.03 × 7,474.10
  4. Step 4: Simplify right side
    13,442.65x = 138,644,779.22
  5. Step 5: Solve for x
    x = 138,644,779.22/13,442.65
  6. Step 6: Final answer
    x = 10,313.80

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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.