Home / 10,990.02-16,480.05-4,747.08

Finding the Fourth Proportional to 10,990.02, 16,480.05 and 4,747.08

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Solution

The fourth proportional to 10,990.02, 16,480.05 and 4,747.08 is: 7,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.02 : 16,480.05 = 4,747.08 : x
  2. Step 2: Convert to fraction form
    10,990.02/16,480.05 = 4,747.08/x
  3. Step 3: Cross multiply
    10,990.02x = 16,480.05 × 4,747.08
  4. Step 4: Simplify right side
    10,990.02x = 78,232,115.75
  5. Step 5: Solve for x
    x = 78,232,115.75/10,990.02
  6. Step 6: Final answer
    x = 7,118.47

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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.