Home / 12,941.40-19,412.10-8,275.80

Finding the Fourth Proportional to 12,941.40, 19,412.10 and 8,275.80

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Solution

The fourth proportional to 12,941.40, 19,412.10 and 8,275.80 is: 12,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.40 : 19,412.10 = 8,275.80 : x
  2. Step 2: Convert to fraction form
    12,941.40/19,412.10 = 8,275.80/x
  3. Step 3: Cross multiply
    12,941.40x = 19,412.10 × 8,275.80
  4. Step 4: Simplify right side
    12,941.40x = 160,650,657.18
  5. Step 5: Solve for x
    x = 160,650,657.18/12,941.40
  6. Step 6: Final answer
    x = 12,413.70

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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.