Home / 19,419.32-26,787.84-13,454.48

Finding the Fourth Proportional to 19,419.32, 26,787.84 and 13,454.48

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Solution

The fourth proportional to 19,419.32, 26,787.84 and 13,454.48 is: 18,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.32 : 26,787.84 = 13,454.48 : x
  2. Step 2: Convert to fraction form
    19,419.32/26,787.84 = 13,454.48/x
  3. Step 3: Cross multiply
    19,419.32x = 26,787.84 × 13,454.48
  4. Step 4: Simplify right side
    19,419.32x = 360,416,457.52
  5. Step 5: Solve for x
    x = 360,416,457.52/19,419.32
  6. Step 6: Final answer
    x = 18,559.68

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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.