Home / 10,963.95-15,130.38-6,655.79

Finding the Fourth Proportional to 10,963.95, 15,130.38 and 6,655.79

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Solution

The fourth proportional to 10,963.95, 15,130.38 and 6,655.79 is: 9,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.95 : 15,130.38 = 6,655.79 : x
  2. Step 2: Convert to fraction form
    10,963.95/15,130.38 = 6,655.79/x
  3. Step 3: Cross multiply
    10,963.95x = 15,130.38 × 6,655.79
  4. Step 4: Simplify right side
    10,963.95x = 100,704,556.25
  5. Step 5: Solve for x
    x = 100,704,556.25/10,963.95
  6. Step 6: Final answer
    x = 9,185.06

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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.