Home / 7,315.50-10,099.99-5,633.74

Finding the Fourth Proportional to 7,315.50, 10,099.99 and 5,633.74

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Solution

The fourth proportional to 7,315.50, 10,099.99 and 5,633.74 is: 7,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.50 : 10,099.99 = 5,633.74 : x
  2. Step 2: Convert to fraction form
    7,315.50/10,099.99 = 5,633.74/x
  3. Step 3: Cross multiply
    7,315.50x = 10,099.99 × 5,633.74
  4. Step 4: Simplify right side
    7,315.50x = 56,900,717.66
  5. Step 5: Solve for x
    x = 56,900,717.66/7,315.50
  6. Step 6: Final answer
    x = 7,778.10

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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.