Home / 13,427.72-18,528.26-7,459.48

Finding the Fourth Proportional to 13,427.72, 18,528.26 and 7,459.48

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Solution

The fourth proportional to 13,427.72, 18,528.26 and 7,459.48 is: 10,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.72 : 18,528.26 = 7,459.48 : x
  2. Step 2: Convert to fraction form
    13,427.72/18,528.26 = 7,459.48/x
  3. Step 3: Cross multiply
    13,427.72x = 18,528.26 × 7,459.48
  4. Step 4: Simplify right side
    13,427.72x = 138,211,184.90
  5. Step 5: Solve for x
    x = 138,211,184.90/13,427.72
  6. Step 6: Final answer
    x = 10,292.97

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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.