Home / 7,914.95-10,917.88-5,226.20

Finding the Fourth Proportional to 7,914.95, 10,917.88 and 5,226.20

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Solution

The fourth proportional to 7,914.95, 10,917.88 and 5,226.20 is: 7,209.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.95 : 10,917.88 = 5,226.20 : x
  2. Step 2: Convert to fraction form
    7,914.95/10,917.88 = 5,226.20/x
  3. Step 3: Cross multiply
    7,914.95x = 10,917.88 × 5,226.20
  4. Step 4: Simplify right side
    7,914.95x = 57,058,959.69
  5. Step 5: Solve for x
    x = 57,058,959.69/7,914.95
  6. Step 6: Final answer
    x = 7,209.01

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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.