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Finding the Fourth Proportional to 48,924, 73,386 and 11,988

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Solution

The fourth proportional to 48,924, 73,386 and 11,988 is: 17,982

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,924 : 73,386 = 11,988 : x
  2. Step 2: Convert to fraction form
    48,924/73,386 = 11,988/x
  3. Step 3: Cross multiply
    48,924x = 73,386 × 11,988
  4. Step 4: Simplify right side
    48,924x = 879,751,368
  5. Step 5: Solve for x
    x = 879,751,368/48,924
  6. Step 6: Final answer
    x = 17,982

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.