Home / 9,017.76-13,528.13-2,777.78

Finding the Fourth Proportional to 9,017.76, 13,528.13 and 2,777.78

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Solution

The fourth proportional to 9,017.76, 13,528.13 and 2,777.78 is: 4,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.76 : 13,528.13 = 2,777.78 : x
  2. Step 2: Convert to fraction form
    9,017.76/13,528.13 = 2,777.78/x
  3. Step 3: Cross multiply
    9,017.76x = 13,528.13 × 2,777.78
  4. Step 4: Simplify right side
    9,017.76x = 37,578,112.79
  5. Step 5: Solve for x
    x = 37,578,112.79/9,017.76
  6. Step 6: Final answer
    x = 4,167.12

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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.