Home / 12,746.17-19,118.73-4,428.07

Finding the Fourth Proportional to 12,746.17, 19,118.73 and 4,428.07

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Solution

The fourth proportional to 12,746.17, 19,118.73 and 4,428.07 is: 6,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.17 : 19,118.73 = 4,428.07 : x
  2. Step 2: Convert to fraction form
    12,746.17/19,118.73 = 4,428.07/x
  3. Step 3: Cross multiply
    12,746.17x = 19,118.73 × 4,428.07
  4. Step 4: Simplify right side
    12,746.17x = 84,659,074.75
  5. Step 5: Solve for x
    x = 84,659,074.75/12,746.17
  6. Step 6: Final answer
    x = 6,641.92

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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.