Home / 12,815.60-19,223.40-4,496.90

Finding the Fourth Proportional to 12,815.60, 19,223.40 and 4,496.90

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Solution

The fourth proportional to 12,815.60, 19,223.40 and 4,496.90 is: 6,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.60 : 19,223.40 = 4,496.90 : x
  2. Step 2: Convert to fraction form
    12,815.60/19,223.40 = 4,496.90/x
  3. Step 3: Cross multiply
    12,815.60x = 19,223.40 × 4,496.90
  4. Step 4: Simplify right side
    12,815.60x = 86,445,707.46
  5. Step 5: Solve for x
    x = 86,445,707.46/12,815.60
  6. Step 6: Final answer
    x = 6,745.35

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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.