Home / 19,385.28-26,723.52-13,407.84

Finding the Fourth Proportional to 19,385.28, 26,723.52 and 13,407.84

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Solution

The fourth proportional to 19,385.28, 26,723.52 and 13,407.84 is: 18,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.28 : 26,723.52 = 13,407.84 : x
  2. Step 2: Convert to fraction form
    19,385.28/26,723.52 = 13,407.84/x
  3. Step 3: Cross multiply
    19,385.28x = 26,723.52 × 13,407.84
  4. Step 4: Simplify right side
    19,385.28x = 358,304,680.40
  5. Step 5: Solve for x
    x = 358,304,680.40/19,385.28
  6. Step 6: Final answer
    x = 18,483.34

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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.