Home / 15,541.90-21,447.82-8,468.32

Finding the Fourth Proportional to 15,541.90, 21,447.82 and 8,468.32

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Solution

The fourth proportional to 15,541.90, 21,447.82 and 8,468.32 is: 11,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.90 : 21,447.82 = 8,468.32 : x
  2. Step 2: Convert to fraction form
    15,541.90/21,447.82 = 8,468.32/x
  3. Step 3: Cross multiply
    15,541.90x = 21,447.82 × 8,468.32
  4. Step 4: Simplify right side
    15,541.90x = 181,626,928.27
  5. Step 5: Solve for x
    x = 181,626,928.27/15,541.90
  6. Step 6: Final answer
    x = 11,686.28

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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.