Home / 14,148.67-21,218.10-4,285.30

Finding the Fourth Proportional to 14,148.67, 21,218.10 and 4,285.30

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Solution

The fourth proportional to 14,148.67, 21,218.10 and 4,285.30 is: 6,426.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.67 : 21,218.10 = 4,285.30 : x
  2. Step 2: Convert to fraction form
    14,148.67/21,218.10 = 4,285.30/x
  3. Step 3: Cross multiply
    14,148.67x = 21,218.10 × 4,285.30
  4. Step 4: Simplify right side
    14,148.67x = 90,925,923.93
  5. Step 5: Solve for x
    x = 90,925,923.93/14,148.67
  6. Step 6: Final answer
    x = 6,426.46

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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.