Home / 14,235.08-21,352.16-6,443.90

Finding the Fourth Proportional to 14,235.08, 21,352.16 and 6,443.90

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Solution

The fourth proportional to 14,235.08, 21,352.16 and 6,443.90 is: 9,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.08 : 21,352.16 = 6,443.90 : x
  2. Step 2: Convert to fraction form
    14,235.08/21,352.16 = 6,443.90/x
  3. Step 3: Cross multiply
    14,235.08x = 21,352.16 × 6,443.90
  4. Step 4: Simplify right side
    14,235.08x = 137,591,044.84
  5. Step 5: Solve for x
    x = 137,591,044.84/14,235.08
  6. Step 6: Final answer
    x = 9,665.64

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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.