Home / 7,913.93-11,870.96-2,070.45

Finding the Fourth Proportional to 7,913.93, 11,870.96 and 2,070.45

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Solution

The fourth proportional to 7,913.93, 11,870.96 and 2,070.45 is: 3,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.93 : 11,870.96 = 2,070.45 : x
  2. Step 2: Convert to fraction form
    7,913.93/11,870.96 = 2,070.45/x
  3. Step 3: Cross multiply
    7,913.93x = 11,870.96 × 2,070.45
  4. Step 4: Simplify right side
    7,913.93x = 24,578,218.78
  5. Step 5: Solve for x
    x = 24,578,218.78/7,913.93
  6. Step 6: Final answer
    x = 3,105.69

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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.