Home / 10,339.98-15,512.58-3,320.63

Finding the Fourth Proportional to 10,339.98, 15,512.58 and 3,320.63

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Solution

The fourth proportional to 10,339.98, 15,512.58 and 3,320.63 is: 4,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.98 : 15,512.58 = 3,320.63 : x
  2. Step 2: Convert to fraction form
    10,339.98/15,512.58 = 3,320.63/x
  3. Step 3: Cross multiply
    10,339.98x = 15,512.58 × 3,320.63
  4. Step 4: Simplify right side
    10,339.98x = 51,511,444.36
  5. Step 5: Solve for x
    x = 51,511,444.36/10,339.98
  6. Step 6: Final answer
    x = 4,981.77

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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.