Home / 7,875.30-10,874.25-5,362.68

Finding the Fourth Proportional to 7,875.30, 10,874.25 and 5,362.68

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Solution

The fourth proportional to 7,875.30, 10,874.25 and 5,362.68 is: 7,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.30 : 10,874.25 = 5,362.68 : x
  2. Step 2: Convert to fraction form
    7,875.30/10,874.25 = 5,362.68/x
  3. Step 3: Cross multiply
    7,875.30x = 10,874.25 × 5,362.68
  4. Step 4: Simplify right side
    7,875.30x = 58,315,122.99
  5. Step 5: Solve for x
    x = 58,315,122.99/7,875.30
  6. Step 6: Final answer
    x = 7,404.81

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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.