Home / 19,410.86-29,112.14-8,877.90

Finding the Fourth Proportional to 19,410.86, 29,112.14 and 8,877.90

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Solution

The fourth proportional to 19,410.86, 29,112.14 and 8,877.90 is: 13,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.86 : 29,112.14 = 8,877.90 : x
  2. Step 2: Convert to fraction form
    19,410.86/29,112.14 = 8,877.90/x
  3. Step 3: Cross multiply
    19,410.86x = 29,112.14 × 8,877.90
  4. Step 4: Simplify right side
    19,410.86x = 258,454,667.71
  5. Step 5: Solve for x
    x = 258,454,667.71/19,410.86
  6. Step 6: Final answer
    x = 13,314.95

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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.