Home / 13,257.72-18,296.16-7,289.88

Finding the Fourth Proportional to 13,257.72, 18,296.16 and 7,289.88

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Solution

The fourth proportional to 13,257.72, 18,296.16 and 7,289.88 is: 10,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.72 : 18,296.16 = 7,289.88 : x
  2. Step 2: Convert to fraction form
    13,257.72/18,296.16 = 7,289.88/x
  3. Step 3: Cross multiply
    13,257.72x = 18,296.16 × 7,289.88
  4. Step 4: Simplify right side
    13,257.72x = 133,376,810.86
  5. Step 5: Solve for x
    x = 133,376,810.86/13,257.72
  6. Step 6: Final answer
    x = 10,060.31

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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.