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Finding the Fourth Proportional to 7,807.70, 10,766.57 and 6,692.34

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Solution

The fourth proportional to 7,807.70, 10,766.57 and 6,692.34 is: 9,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.70 : 10,766.57 = 6,692.34 : x
  2. Step 2: Convert to fraction form
    7,807.70/10,766.57 = 6,692.34/x
  3. Step 3: Cross multiply
    7,807.70x = 10,766.57 × 6,692.34
  4. Step 4: Simplify right side
    7,807.70x = 72,053,547.07
  5. Step 5: Solve for x
    x = 72,053,547.07/7,807.70
  6. Step 6: Final answer
    x = 9,228.52

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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.