Home / 14,219.16-19,622.70-7,930.86

Finding the Fourth Proportional to 14,219.16, 19,622.70 and 7,930.86

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Solution

The fourth proportional to 14,219.16, 19,622.70 and 7,930.86 is: 10,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.16 : 19,622.70 = 7,930.86 : x
  2. Step 2: Convert to fraction form
    14,219.16/19,622.70 = 7,930.86/x
  3. Step 3: Cross multiply
    14,219.16x = 19,622.70 × 7,930.86
  4. Step 4: Simplify right side
    14,219.16x = 155,624,886.52
  5. Step 5: Solve for x
    x = 155,624,886.52/14,219.16
  6. Step 6: Final answer
    x = 10,944.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.