Home / 10,331.76-15,476.83-4,777.45

Finding the Fourth Proportional to 10,331.76, 15,476.83 and 4,777.45

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Solution

The fourth proportional to 10,331.76, 15,476.83 and 4,777.45 is: 7,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.76 : 15,476.83 = 4,777.45 : x
  2. Step 2: Convert to fraction form
    10,331.76/15,476.83 = 4,777.45/x
  3. Step 3: Cross multiply
    10,331.76x = 15,476.83 × 4,777.45
  4. Step 4: Simplify right side
    10,331.76x = 73,939,781.48
  5. Step 5: Solve for x
    x = 73,939,781.48/10,331.76
  6. Step 6: Final answer
    x = 7,156.55

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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.