Home / 12,815.63-19,223.42-5,018.99

Finding the Fourth Proportional to 12,815.63, 19,223.42 and 5,018.99

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Solution

The fourth proportional to 12,815.63, 19,223.42 and 5,018.99 is: 7,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.63 : 19,223.42 = 5,018.99 : x
  2. Step 2: Convert to fraction form
    12,815.63/19,223.42 = 5,018.99/x
  3. Step 3: Cross multiply
    12,815.63x = 19,223.42 × 5,018.99
  4. Step 4: Simplify right side
    12,815.63x = 96,482,127.65
  5. Step 5: Solve for x
    x = 96,482,127.65/12,815.63
  6. Step 6: Final answer
    x = 7,528.47

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Double scale
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Similar ratio
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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.