Home / 7,913.49-10,917.55-5,080.11

Finding the Fourth Proportional to 7,913.49, 10,917.55 and 5,080.11

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Solution

The fourth proportional to 7,913.49, 10,917.55 and 5,080.11 is: 7,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.49 : 10,917.55 = 5,080.11 : x
  2. Step 2: Convert to fraction form
    7,913.49/10,917.55 = 5,080.11/x
  3. Step 3: Cross multiply
    7,913.49x = 10,917.55 × 5,080.11
  4. Step 4: Simplify right side
    7,913.49x = 55,462,354.93
  5. Step 5: Solve for x
    x = 55,462,354.93/7,913.49
  6. Step 6: Final answer
    x = 7,008.58

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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.