Home / 10,458.05-15,686.87-2,666.93

Finding the Fourth Proportional to 10,458.05, 15,686.87 and 2,666.93

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Solution

The fourth proportional to 10,458.05, 15,686.87 and 2,666.93 is: 4,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.05 : 15,686.87 = 2,666.93 : x
  2. Step 2: Convert to fraction form
    10,458.05/15,686.87 = 2,666.93/x
  3. Step 3: Cross multiply
    10,458.05x = 15,686.87 × 2,666.93
  4. Step 4: Simplify right side
    10,458.05x = 41,835,692.44
  5. Step 5: Solve for x
    x = 41,835,692.44/10,458.05
  6. Step 6: Final answer
    x = 4,000.34

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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.