Home / 8,727.61-12,038.68-7,611.22

Finding the Fourth Proportional to 8,727.61, 12,038.68 and 7,611.22

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Solution

The fourth proportional to 8,727.61, 12,038.68 and 7,611.22 is: 10,498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.61 : 12,038.68 = 7,611.22 : x
  2. Step 2: Convert to fraction form
    8,727.61/12,038.68 = 7,611.22/x
  3. Step 3: Cross multiply
    8,727.61x = 12,038.68 × 7,611.22
  4. Step 4: Simplify right side
    8,727.61x = 91,629,041.99
  5. Step 5: Solve for x
    x = 91,629,041.99/8,727.61
  6. Step 6: Final answer
    x = 10,498.76

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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.