Home / 15,345.02-21,177.24-9,377.82

Finding the Fourth Proportional to 15,345.02, 21,177.24 and 9,377.82

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Solution

The fourth proportional to 15,345.02, 21,177.24 and 9,377.82 is: 12,942.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345.02 : 21,177.24 = 9,377.82 : x
  2. Step 2: Convert to fraction form
    15,345.02/21,177.24 = 9,377.82/x
  3. Step 3: Cross multiply
    15,345.02x = 21,177.24 × 9,377.82
  4. Step 4: Simplify right side
    15,345.02x = 198,596,344.82
  5. Step 5: Solve for x
    x = 198,596,344.82/15,345.02
  6. Step 6: Final answer
    x = 12,942.07

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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.