Home / 9,981.70-14,972.55-3,406.90

Finding the Fourth Proportional to 9,981.70, 14,972.55 and 3,406.90

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Solution

The fourth proportional to 9,981.70, 14,972.55 and 3,406.90 is: 5,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.70 : 14,972.55 = 3,406.90 : x
  2. Step 2: Convert to fraction form
    9,981.70/14,972.55 = 3,406.90/x
  3. Step 3: Cross multiply
    9,981.70x = 14,972.55 × 3,406.90
  4. Step 4: Simplify right side
    9,981.70x = 51,009,980.60
  5. Step 5: Solve for x
    x = 51,009,980.60/9,981.70
  6. Step 6: Final answer
    x = 5,110.35

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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.