Home / 7,406.16-11,111.40-3,513.84

Finding the Fourth Proportional to 7,406.16, 11,111.40 and 3,513.84

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Solution

The fourth proportional to 7,406.16, 11,111.40 and 3,513.84 is: 5,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.16 : 11,111.40 = 3,513.84 : x
  2. Step 2: Convert to fraction form
    7,406.16/11,111.40 = 3,513.84/x
  3. Step 3: Cross multiply
    7,406.16x = 11,111.40 × 3,513.84
  4. Step 4: Simplify right side
    7,406.16x = 39,043,681.78
  5. Step 5: Solve for x
    x = 39,043,681.78/7,406.16
  6. Step 6: Final answer
    x = 5,271.78

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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.