Home / 10,655.88-15,984.72-2,864.76

Finding the Fourth Proportional to 10,655.88, 15,984.72 and 2,864.76

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Solution

The fourth proportional to 10,655.88, 15,984.72 and 2,864.76 is: 4,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.88 : 15,984.72 = 2,864.76 : x
  2. Step 2: Convert to fraction form
    10,655.88/15,984.72 = 2,864.76/x
  3. Step 3: Cross multiply
    10,655.88x = 15,984.72 × 2,864.76
  4. Step 4: Simplify right side
    10,655.88x = 45,792,386.47
  5. Step 5: Solve for x
    x = 45,792,386.47/10,655.88
  6. Step 6: Final answer
    x = 4,297.38

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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.