Home / 14,749.18-20,355.03-8,377.78

Finding the Fourth Proportional to 14,749.18, 20,355.03 and 8,377.78

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Solution

The fourth proportional to 14,749.18, 20,355.03 and 8,377.78 is: 11,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.18 : 20,355.03 = 8,377.78 : x
  2. Step 2: Convert to fraction form
    14,749.18/20,355.03 = 8,377.78/x
  3. Step 3: Cross multiply
    14,749.18x = 20,355.03 × 8,377.78
  4. Step 4: Simplify right side
    14,749.18x = 170,529,963.23
  5. Step 5: Solve for x
    x = 170,529,963.23/14,749.18
  6. Step 6: Final answer
    x = 11,562.00

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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.