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Finding the Fourth Proportional to 8,907.03, 12,291.73 and 5,078.54

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Solution

The fourth proportional to 8,907.03, 12,291.73 and 5,078.54 is: 7,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.03 : 12,291.73 = 5,078.54 : x
  2. Step 2: Convert to fraction form
    8,907.03/12,291.73 = 5,078.54/x
  3. Step 3: Cross multiply
    8,907.03x = 12,291.73 × 5,078.54
  4. Step 4: Simplify right side
    8,907.03x = 62,424,060.51
  5. Step 5: Solve for x
    x = 62,424,060.51/8,907.03
  6. Step 6: Final answer
    x = 7,008.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.