Home / 7,725.14-11,587.74-5,426.90

Finding the Fourth Proportional to 7,725.14, 11,587.74 and 5,426.90

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Solution

The fourth proportional to 7,725.14, 11,587.74 and 5,426.90 is: 8,140.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.14 : 11,587.74 = 5,426.90 : x
  2. Step 2: Convert to fraction form
    7,725.14/11,587.74 = 5,426.90/x
  3. Step 3: Cross multiply
    7,725.14x = 11,587.74 × 5,426.90
  4. Step 4: Simplify right side
    7,725.14x = 62,885,506.21
  5. Step 5: Solve for x
    x = 62,885,506.21/7,725.14
  6. Step 6: Final answer
    x = 8,140.37

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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.