Home / 12,929.85-17,845.52-7,624.35

Finding the Fourth Proportional to 12,929.85, 17,845.52 and 7,624.35

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Solution

The fourth proportional to 12,929.85, 17,845.52 and 7,624.35 is: 10,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.85 : 17,845.52 = 7,624.35 : x
  2. Step 2: Convert to fraction form
    12,929.85/17,845.52 = 7,624.35/x
  3. Step 3: Cross multiply
    12,929.85x = 17,845.52 × 7,624.35
  4. Step 4: Simplify right side
    12,929.85x = 136,060,452.29
  5. Step 5: Solve for x
    x = 136,060,452.29/12,929.85
  6. Step 6: Final answer
    x = 10,522.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.