Home / 13,254.18-18,290.91-7,285.70

Finding the Fourth Proportional to 13,254.18, 18,290.91 and 7,285.70

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Solution

The fourth proportional to 13,254.18, 18,290.91 and 7,285.70 is: 10,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.18 : 18,290.91 = 7,285.70 : x
  2. Step 2: Convert to fraction form
    13,254.18/18,290.91 = 7,285.70/x
  3. Step 3: Cross multiply
    13,254.18x = 18,290.91 × 7,285.70
  4. Step 4: Simplify right side
    13,254.18x = 133,262,053.15
  5. Step 5: Solve for x
    x = 133,262,053.15/13,254.18
  6. Step 6: Final answer
    x = 10,054.34

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Similar ratio
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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.