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Finding the Fourth Proportional to 21,604.59, 32,413.56 and 9,130.18

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Solution

The fourth proportional to 21,604.59, 32,413.56 and 9,130.18 is: 13,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.59 : 32,413.56 = 9,130.18 : x
  2. Step 2: Convert to fraction form
    21,604.59/32,413.56 = 9,130.18/x
  3. Step 3: Cross multiply
    21,604.59x = 32,413.56 × 9,130.18
  4. Step 4: Simplify right side
    21,604.59x = 295,941,637.24
  5. Step 5: Solve for x
    x = 295,941,637.24/21,604.59
  6. Step 6: Final answer
    x = 13,698.09

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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.