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Finding the Fourth Proportional to 27,510.60, 41,265.90 and 7,788.90

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Solution

The fourth proportional to 27,510.60, 41,265.90 and 7,788.90 is: 11,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,510.60 : 41,265.90 = 7,788.90 : x
  2. Step 2: Convert to fraction form
    27,510.60/41,265.90 = 7,788.90/x
  3. Step 3: Cross multiply
    27,510.60x = 41,265.90 × 7,788.90
  4. Step 4: Simplify right side
    27,510.60x = 321,415,968.51
  5. Step 5: Solve for x
    x = 321,415,968.51/27,510.60
  6. Step 6: Final answer
    x = 11,683.35

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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.