Home / 14,289.12-21,435.48-4,426.92

Finding the Fourth Proportional to 14,289.12, 21,435.48 and 4,426.92

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Solution

The fourth proportional to 14,289.12, 21,435.48 and 4,426.92 is: 6,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.12 : 21,435.48 = 4,426.92 : x
  2. Step 2: Convert to fraction form
    14,289.12/21,435.48 = 4,426.92/x
  3. Step 3: Cross multiply
    14,289.12x = 21,435.48 × 4,426.92
  4. Step 4: Simplify right side
    14,289.12x = 94,893,155.12
  5. Step 5: Solve for x
    x = 94,893,155.12/14,289.12
  6. Step 6: Final answer
    x = 6,640.94

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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.