Home / 19,643.28-29,470.32-9,104.64

Finding the Fourth Proportional to 19,643.28, 29,470.32 and 9,104.64

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Solution

The fourth proportional to 19,643.28, 29,470.32 and 9,104.64 is: 13,659.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.28 : 29,470.32 = 9,104.64 : x
  2. Step 2: Convert to fraction form
    19,643.28/29,470.32 = 9,104.64/x
  3. Step 3: Cross multiply
    19,643.28x = 29,470.32 × 9,104.64
  4. Step 4: Simplify right side
    19,643.28x = 268,316,654.28
  5. Step 5: Solve for x
    x = 268,316,654.28/19,643.28
  6. Step 6: Final answer
    x = 13,659.46

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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.