Home / 14,831.70-22,211.55-7,890.90

Finding the Fourth Proportional to 14,831.70, 22,211.55 and 7,890.90

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Solution

The fourth proportional to 14,831.70, 22,211.55 and 7,890.90 is: 11,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.70 : 22,211.55 = 7,890.90 : x
  2. Step 2: Convert to fraction form
    14,831.70/22,211.55 = 7,890.90/x
  3. Step 3: Cross multiply
    14,831.70x = 22,211.55 × 7,890.90
  4. Step 4: Simplify right side
    14,831.70x = 175,269,119.90
  5. Step 5: Solve for x
    x = 175,269,119.90/14,831.70
  6. Step 6: Final answer
    x = 11,817.20

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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.