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Finding the Fourth Proportional to 6,555.04, 9,830.64 and 6,488.80

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Solution

The fourth proportional to 6,555.04, 9,830.64 and 6,488.80 is: 9,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.04 : 9,830.64 = 6,488.80 : x
  2. Step 2: Convert to fraction form
    6,555.04/9,830.64 = 6,488.80/x
  3. Step 3: Cross multiply
    6,555.04x = 9,830.64 × 6,488.80
  4. Step 4: Simplify right side
    6,555.04x = 63,789,056.83
  5. Step 5: Solve for x
    x = 63,789,056.83/6,555.04
  6. Step 6: Final answer
    x = 9,731.30

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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.