Home / 7,911.05-10,917.47-4,374.49

Finding the Fourth Proportional to 7,911.05, 10,917.47 and 4,374.49

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Solution

The fourth proportional to 7,911.05, 10,917.47 and 4,374.49 is: 6,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.05 : 10,917.47 = 4,374.49 : x
  2. Step 2: Convert to fraction form
    7,911.05/10,917.47 = 4,374.49/x
  3. Step 3: Cross multiply
    7,911.05x = 10,917.47 × 4,374.49
  4. Step 4: Simplify right side
    7,911.05x = 47,758,363.34
  5. Step 5: Solve for x
    x = 47,758,363.34/7,911.05
  6. Step 6: Final answer
    x = 6,036.92

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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.