Home / 13,254.11-18,290.26-7,285.76

Finding the Fourth Proportional to 13,254.11, 18,290.26 and 7,285.76

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Solution

The fourth proportional to 13,254.11, 18,290.26 and 7,285.76 is: 10,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.11 : 18,290.26 = 7,285.76 : x
  2. Step 2: Convert to fraction form
    13,254.11/18,290.26 = 7,285.76/x
  3. Step 3: Cross multiply
    13,254.11x = 18,290.26 × 7,285.76
  4. Step 4: Simplify right side
    13,254.11x = 133,258,316.82
  5. Step 5: Solve for x
    x = 133,258,316.82/13,254.11
  6. Step 6: Final answer
    x = 10,054.12

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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.