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Finding the Fourth Proportional to 11,948.37, 17,907.02 and 4,920.40

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Solution

The fourth proportional to 11,948.37, 17,907.02 and 4,920.40 is: 7,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.37 : 17,907.02 = 4,920.40 : x
  2. Step 2: Convert to fraction form
    11,948.37/17,907.02 = 4,920.40/x
  3. Step 3: Cross multiply
    11,948.37x = 17,907.02 × 4,920.40
  4. Step 4: Simplify right side
    11,948.37x = 88,109,701.21
  5. Step 5: Solve for x
    x = 88,109,701.21/11,948.37
  6. Step 6: Final answer
    x = 7,374.20

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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.