Home / 6,555.40-9,818.70-3,953.80

Finding the Fourth Proportional to 6,555.40, 9,818.70 and 3,953.80

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Solution

The fourth proportional to 6,555.40, 9,818.70 and 3,953.80 is: 5,922.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.40 : 9,818.70 = 3,953.80 : x
  2. Step 2: Convert to fraction form
    6,555.40/9,818.70 = 3,953.80/x
  3. Step 3: Cross multiply
    6,555.40x = 9,818.70 × 3,953.80
  4. Step 4: Simplify right side
    6,555.40x = 38,821,176.06
  5. Step 5: Solve for x
    x = 38,821,176.06/6,555.40
  6. Step 6: Final answer
    x = 5,922.01

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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.