Home / 13,353.48-18,427.62-7,385.16

Finding the Fourth Proportional to 13,353.48, 18,427.62 and 7,385.16

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Solution

The fourth proportional to 13,353.48, 18,427.62 and 7,385.16 is: 10,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.48 : 18,427.62 = 7,385.16 : x
  2. Step 2: Convert to fraction form
    13,353.48/18,427.62 = 7,385.16/x
  3. Step 3: Cross multiply
    13,353.48x = 18,427.62 × 7,385.16
  4. Step 4: Simplify right side
    13,353.48x = 136,090,922.12
  5. Step 5: Solve for x
    x = 136,090,922.12/13,353.48
  6. Step 6: Final answer
    x = 10,191.42

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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.