Home / 7,009.43-10,515.18-2,078.45

Finding the Fourth Proportional to 7,009.43, 10,515.18 and 2,078.45

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Solution

The fourth proportional to 7,009.43, 10,515.18 and 2,078.45 is: 3,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.43 : 10,515.18 = 2,078.45 : x
  2. Step 2: Convert to fraction form
    7,009.43/10,515.18 = 2,078.45/x
  3. Step 3: Cross multiply
    7,009.43x = 10,515.18 × 2,078.45
  4. Step 4: Simplify right side
    7,009.43x = 21,855,223.30
  5. Step 5: Solve for x
    x = 21,855,223.30/7,009.43
  6. Step 6: Final answer
    x = 3,117.98

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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.