Home / 14,135.30-21,206.28-4,274.66

Finding the Fourth Proportional to 14,135.30, 21,206.28 and 4,274.66

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Solution

The fourth proportional to 14,135.30, 21,206.28 and 4,274.66 is: 6,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.30 : 21,206.28 = 4,274.66 : x
  2. Step 2: Convert to fraction form
    14,135.30/21,206.28 = 4,274.66/x
  3. Step 3: Cross multiply
    14,135.30x = 21,206.28 × 4,274.66
  4. Step 4: Simplify right side
    14,135.30x = 90,649,636.86
  5. Step 5: Solve for x
    x = 90,649,636.86/14,135.30
  6. Step 6: Final answer
    x = 6,413.00

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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.