Home / 13,115.19-19,658.77-5,206.76

Finding the Fourth Proportional to 13,115.19, 19,658.77 and 5,206.76

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Solution

The fourth proportional to 13,115.19, 19,658.77 and 5,206.76 is: 7,804.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.19 : 19,658.77 = 5,206.76 : x
  2. Step 2: Convert to fraction form
    13,115.19/19,658.77 = 5,206.76/x
  3. Step 3: Cross multiply
    13,115.19x = 19,658.77 × 5,206.76
  4. Step 4: Simplify right side
    13,115.19x = 102,358,497.29
  5. Step 5: Solve for x
    x = 102,358,497.29/13,115.19
  6. Step 6: Final answer
    x = 7,804.58

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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.