Home / 11,115.66-16,681.05-5,925.18

Finding the Fourth Proportional to 11,115.66, 16,681.05 and 5,925.18

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Solution

The fourth proportional to 11,115.66, 16,681.05 and 5,925.18 is: 8,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.66 : 16,681.05 = 5,925.18 : x
  2. Step 2: Convert to fraction form
    11,115.66/16,681.05 = 5,925.18/x
  3. Step 3: Cross multiply
    11,115.66x = 16,681.05 × 5,925.18
  4. Step 4: Simplify right side
    11,115.66x = 98,838,223.84
  5. Step 5: Solve for x
    x = 98,838,223.84/11,115.66
  6. Step 6: Final answer
    x = 8,891.80

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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.