Home / 15,242.94-21,035.16-8,528.55

Finding the Fourth Proportional to 15,242.94, 21,035.16 and 8,528.55

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Solution

The fourth proportional to 15,242.94, 21,035.16 and 8,528.55 is: 11,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.94 : 21,035.16 = 8,528.55 : x
  2. Step 2: Convert to fraction form
    15,242.94/21,035.16 = 8,528.55/x
  3. Step 3: Cross multiply
    15,242.94x = 21,035.16 × 8,528.55
  4. Step 4: Simplify right side
    15,242.94x = 179,399,413.82
  5. Step 5: Solve for x
    x = 179,399,413.82/15,242.94
  6. Step 6: Final answer
    x = 11,769.34

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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.