Home / 7,415.15-11,122.81-2,484.80

Finding the Fourth Proportional to 7,415.15, 11,122.81 and 2,484.80

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Solution

The fourth proportional to 7,415.15, 11,122.81 and 2,484.80 is: 3,727.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.15 : 11,122.81 = 2,484.80 : x
  2. Step 2: Convert to fraction form
    7,415.15/11,122.81 = 2,484.80/x
  3. Step 3: Cross multiply
    7,415.15x = 11,122.81 × 2,484.80
  4. Step 4: Simplify right side
    7,415.15x = 27,637,938.17
  5. Step 5: Solve for x
    x = 27,637,938.17/7,415.15
  6. Step 6: Final answer
    x = 3,727.23

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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.