Home / 6,737.60-10,106.40-5,085.20

Finding the Fourth Proportional to 6,737.60, 10,106.40 and 5,085.20

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Solution

The fourth proportional to 6,737.60, 10,106.40 and 5,085.20 is: 7,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,737.60 : 10,106.40 = 5,085.20 : x
  2. Step 2: Convert to fraction form
    6,737.60/10,106.40 = 5,085.20/x
  3. Step 3: Cross multiply
    6,737.60x = 10,106.40 × 5,085.20
  4. Step 4: Simplify right side
    6,737.60x = 51,393,065.28
  5. Step 5: Solve for x
    x = 51,393,065.28/6,737.60
  6. Step 6: Final answer
    x = 7,627.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.