Home / 13,311.30-18,357.93-10,657.74

Finding the Fourth Proportional to 13,311.30, 18,357.93 and 10,657.74

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Solution

The fourth proportional to 13,311.30, 18,357.93 and 10,657.74 is: 14,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.30 : 18,357.93 = 10,657.74 : x
  2. Step 2: Convert to fraction form
    13,311.30/18,357.93 = 10,657.74/x
  3. Step 3: Cross multiply
    13,311.30x = 18,357.93 × 10,657.74
  4. Step 4: Simplify right side
    13,311.30x = 195,654,044.88
  5. Step 5: Solve for x
    x = 195,654,044.88/13,311.30
  6. Step 6: Final answer
    x = 14,698.34

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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.