Home / 19,268.90-28,905.76-6,621.10

Finding the Fourth Proportional to 19,268.90, 28,905.76 and 6,621.10

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Solution

The fourth proportional to 19,268.90, 28,905.76 and 6,621.10 is: 9,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.90 : 28,905.76 = 6,621.10 : x
  2. Step 2: Convert to fraction form
    19,268.90/28,905.76 = 6,621.10/x
  3. Step 3: Cross multiply
    19,268.90x = 28,905.76 × 6,621.10
  4. Step 4: Simplify right side
    19,268.90x = 191,387,927.54
  5. Step 5: Solve for x
    x = 191,387,927.54/19,268.90
  6. Step 6: Final answer
    x = 9,932.48

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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.