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Finding the Fourth Proportional to 18,603.60, 27,907.80 and 9,248.40

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Solution

The fourth proportional to 18,603.60, 27,907.80 and 9,248.40 is: 13,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.60 : 27,907.80 = 9,248.40 : x
  2. Step 2: Convert to fraction form
    18,603.60/27,907.80 = 9,248.40/x
  3. Step 3: Cross multiply
    18,603.60x = 27,907.80 × 9,248.40
  4. Step 4: Simplify right side
    18,603.60x = 258,102,497.52
  5. Step 5: Solve for x
    x = 258,102,497.52/18,603.60
  6. Step 6: Final answer
    x = 13,873.79

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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.