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Finding the Fourth Proportional to 6,551.40, 9,810.90 and 6,259.80

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Solution

The fourth proportional to 6,551.40, 9,810.90 and 6,259.80 is: 9,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.40 : 9,810.90 = 6,259.80 : x
  2. Step 2: Convert to fraction form
    6,551.40/9,810.90 = 6,259.80/x
  3. Step 3: Cross multiply
    6,551.40x = 9,810.90 × 6,259.80
  4. Step 4: Simplify right side
    6,551.40x = 61,414,271.82
  5. Step 5: Solve for x
    x = 61,414,271.82/6,551.40
  6. Step 6: Final answer
    x = 9,374.22

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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.