Home / 13,353.16-18,427.26-7,385.08

Finding the Fourth Proportional to 13,353.16, 18,427.26 and 7,385.08

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Solution

The fourth proportional to 13,353.16, 18,427.26 and 7,385.08 is: 10,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.16 : 18,427.26 = 7,385.08 : x
  2. Step 2: Convert to fraction form
    13,353.16/18,427.26 = 7,385.08/x
  3. Step 3: Cross multiply
    13,353.16x = 18,427.26 × 7,385.08
  4. Step 4: Simplify right side
    13,353.16x = 136,086,789.28
  5. Step 5: Solve for x
    x = 136,086,789.28/13,353.16
  6. Step 6: Final answer
    x = 10,191.35

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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.