Home / 13,285.79-19,930.04-4,521.32

Finding the Fourth Proportional to 13,285.79, 19,930.04 and 4,521.32

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Solution

The fourth proportional to 13,285.79, 19,930.04 and 4,521.32 is: 6,782.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.79 : 19,930.04 = 4,521.32 : x
  2. Step 2: Convert to fraction form
    13,285.79/19,930.04 = 4,521.32/x
  3. Step 3: Cross multiply
    13,285.79x = 19,930.04 × 4,521.32
  4. Step 4: Simplify right side
    13,285.79x = 90,110,065.85
  5. Step 5: Solve for x
    x = 90,110,065.85/13,285.79
  6. Step 6: Final answer
    x = 6,782.44

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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.