Home / 9,917.80-14,865.90-4,370.20

Finding the Fourth Proportional to 9,917.80, 14,865.90 and 4,370.20

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Solution

The fourth proportional to 9,917.80, 14,865.90 and 4,370.20 is: 6,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.80 : 14,865.90 = 4,370.20 : x
  2. Step 2: Convert to fraction form
    9,917.80/14,865.90 = 4,370.20/x
  3. Step 3: Cross multiply
    9,917.80x = 14,865.90 × 4,370.20
  4. Step 4: Simplify right side
    9,917.80x = 64,966,956.18
  5. Step 5: Solve for x
    x = 64,966,956.18/9,917.80
  6. Step 6: Final answer
    x = 6,550.54

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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.