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Finding the Fourth Proportional to 10,368, 15,553.53 and 3,345.66

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Solution

The fourth proportional to 10,368, 15,553.53 and 3,345.66 is: 5,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368 : 15,553.53 = 3,345.66 : x
  2. Step 2: Convert to fraction form
    10,368/15,553.53 = 3,345.66/x
  3. Step 3: Cross multiply
    10,368x = 15,553.53 × 3,345.66
  4. Step 4: Simplify right side
    10,368x = 52,036,823.18
  5. Step 5: Solve for x
    x = 52,036,823.18/10,368
  6. Step 6: Final answer
    x = 5,018.98

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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.