Home / 10,127.19-15,198.47-7,028.91

Finding the Fourth Proportional to 10,127.19, 15,198.47 and 7,028.91

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Solution

The fourth proportional to 10,127.19, 15,198.47 and 7,028.91 is: 10,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.19 : 15,198.47 = 7,028.91 : x
  2. Step 2: Convert to fraction form
    10,127.19/15,198.47 = 7,028.91/x
  3. Step 3: Cross multiply
    10,127.19x = 15,198.47 × 7,028.91
  4. Step 4: Simplify right side
    10,127.19x = 106,828,642.62
  5. Step 5: Solve for x
    x = 106,828,642.62/10,127.19
  6. Step 6: Final answer
    x = 10,548.70

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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.