Home / 7,518.87-11,277.18-2,588.40

Finding the Fourth Proportional to 7,518.87, 11,277.18 and 2,588.40

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Solution

The fourth proportional to 7,518.87, 11,277.18 and 2,588.40 is: 3,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.87 : 11,277.18 = 2,588.40 : x
  2. Step 2: Convert to fraction form
    7,518.87/11,277.18 = 2,588.40/x
  3. Step 3: Cross multiply
    7,518.87x = 11,277.18 × 2,588.40
  4. Step 4: Simplify right side
    7,518.87x = 29,189,852.71
  5. Step 5: Solve for x
    x = 29,189,852.71/7,518.87
  6. Step 6: Final answer
    x = 3,882.21

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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.