Home / 6,919.95-10,386.99-5,065.56

Finding the Fourth Proportional to 6,919.95, 10,386.99 and 5,065.56

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Solution

The fourth proportional to 6,919.95, 10,386.99 and 5,065.56 is: 7,603.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.95 : 10,386.99 = 5,065.56 : x
  2. Step 2: Convert to fraction form
    6,919.95/10,386.99 = 5,065.56/x
  3. Step 3: Cross multiply
    6,919.95x = 10,386.99 × 5,065.56
  4. Step 4: Simplify right side
    6,919.95x = 52,615,921.06
  5. Step 5: Solve for x
    x = 52,615,921.06/6,919.95
  6. Step 6: Final answer
    x = 7,603.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.