Home / 8,419.23-11,618.12-4,692.51

Finding the Fourth Proportional to 8,419.23, 11,618.12 and 4,692.51

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Solution

The fourth proportional to 8,419.23, 11,618.12 and 4,692.51 is: 6,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.23 : 11,618.12 = 4,692.51 : x
  2. Step 2: Convert to fraction form
    8,419.23/11,618.12 = 4,692.51/x
  3. Step 3: Cross multiply
    8,419.23x = 11,618.12 × 4,692.51
  4. Step 4: Simplify right side
    8,419.23x = 54,518,120.82
  5. Step 5: Solve for x
    x = 54,518,120.82/8,419.23
  6. Step 6: Final answer
    x = 6,475.43

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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.