Home / 7,411.53-11,118.65-3,515.91

Finding the Fourth Proportional to 7,411.53, 11,118.65 and 3,515.91

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Solution

The fourth proportional to 7,411.53, 11,118.65 and 3,515.91 is: 5,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.53 : 11,118.65 = 3,515.91 : x
  2. Step 2: Convert to fraction form
    7,411.53/11,118.65 = 3,515.91/x
  3. Step 3: Cross multiply
    7,411.53x = 11,118.65 × 3,515.91
  4. Step 4: Simplify right side
    7,411.53x = 39,092,133.22
  5. Step 5: Solve for x
    x = 39,092,133.22/7,411.53
  6. Step 6: Final answer
    x = 5,274.50

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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.