Home / 11,335.53-15,640.20-7,079.98

Finding the Fourth Proportional to 11,335.53, 15,640.20 and 7,079.98

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Solution

The fourth proportional to 11,335.53, 15,640.20 and 7,079.98 is: 9,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.53 : 15,640.20 = 7,079.98 : x
  2. Step 2: Convert to fraction form
    11,335.53/15,640.20 = 7,079.98/x
  3. Step 3: Cross multiply
    11,335.53x = 15,640.20 × 7,079.98
  4. Step 4: Simplify right side
    11,335.53x = 110,732,303.20
  5. Step 5: Solve for x
    x = 110,732,303.20/11,335.53
  6. Step 6: Final answer
    x = 9,768.60

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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.