Home / 14,259.40-21,356.70-7,325.80

Finding the Fourth Proportional to 14,259.40, 21,356.70 and 7,325.80

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Solution

The fourth proportional to 14,259.40, 21,356.70 and 7,325.80 is: 10,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.40 : 21,356.70 = 7,325.80 : x
  2. Step 2: Convert to fraction form
    14,259.40/21,356.70 = 7,325.80/x
  3. Step 3: Cross multiply
    14,259.40x = 21,356.70 × 7,325.80
  4. Step 4: Simplify right side
    14,259.40x = 156,454,912.86
  5. Step 5: Solve for x
    x = 156,454,912.86/14,259.40
  6. Step 6: Final answer
    x = 10,972.05

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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.