Home / 7,911.74-10,918.13-4,374.92

Finding the Fourth Proportional to 7,911.74, 10,918.13 and 4,374.92

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Solution

The fourth proportional to 7,911.74, 10,918.13 and 4,374.92 is: 6,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.74 : 10,918.13 = 4,374.92 : x
  2. Step 2: Convert to fraction form
    7,911.74/10,918.13 = 4,374.92/x
  3. Step 3: Cross multiply
    7,911.74x = 10,918.13 × 4,374.92
  4. Step 4: Simplify right side
    7,911.74x = 47,765,868.83
  5. Step 5: Solve for x
    x = 47,765,868.83/7,911.74
  6. Step 6: Final answer
    x = 6,037.34

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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.