Home / 7,136.25-10,690.53-5,258.74

Finding the Fourth Proportional to 7,136.25, 10,690.53 and 5,258.74

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Solution

The fourth proportional to 7,136.25, 10,690.53 and 5,258.74 is: 7,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.25 : 10,690.53 = 5,258.74 : x
  2. Step 2: Convert to fraction form
    7,136.25/10,690.53 = 5,258.74/x
  3. Step 3: Cross multiply
    7,136.25x = 10,690.53 × 5,258.74
  4. Step 4: Simplify right side
    7,136.25x = 56,218,710.73
  5. Step 5: Solve for x
    x = 56,218,710.73/7,136.25
  6. Step 6: Final answer
    x = 7,877.90

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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.