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Finding the Fourth Proportional to 15,999.78, 24,007.41 and 6,646.98

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Solution

The fourth proportional to 15,999.78, 24,007.41 and 6,646.98 is: 9,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.78 : 24,007.41 = 6,646.98 : x
  2. Step 2: Convert to fraction form
    15,999.78/24,007.41 = 6,646.98/x
  3. Step 3: Cross multiply
    15,999.78x = 24,007.41 × 6,646.98
  4. Step 4: Simplify right side
    15,999.78x = 159,576,774.12
  5. Step 5: Solve for x
    x = 159,576,774.12/15,999.78
  6. Step 6: Final answer
    x = 9,973.69

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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.