Home / 7,911.77-10,918.46-4,375.31

Finding the Fourth Proportional to 7,911.77, 10,918.46 and 4,375.31

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Solution

The fourth proportional to 7,911.77, 10,918.46 and 4,375.31 is: 6,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.77 : 10,918.46 = 4,375.31 : x
  2. Step 2: Convert to fraction form
    7,911.77/10,918.46 = 4,375.31/x
  3. Step 3: Cross multiply
    7,911.77x = 10,918.46 × 4,375.31
  4. Step 4: Simplify right side
    7,911.77x = 47,771,603.57
  5. Step 5: Solve for x
    x = 47,771,603.57/7,911.77
  6. Step 6: Final answer
    x = 6,038.05

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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.