Home / 11,328.02-15,621.76-6,789.99

Finding the Fourth Proportional to 11,328.02, 15,621.76 and 6,789.99

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Solution

The fourth proportional to 11,328.02, 15,621.76 and 6,789.99 is: 9,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.02 : 15,621.76 = 6,789.99 : x
  2. Step 2: Convert to fraction form
    11,328.02/15,621.76 = 6,789.99/x
  3. Step 3: Cross multiply
    11,328.02x = 15,621.76 × 6,789.99
  4. Step 4: Simplify right side
    11,328.02x = 106,071,594.18
  5. Step 5: Solve for x
    x = 106,071,594.18/11,328.02
  6. Step 6: Final answer
    x = 9,363.65

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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.