Home / 7,929.52-11,894.60-2,086.72

Finding the Fourth Proportional to 7,929.52, 11,894.60 and 2,086.72

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Solution

The fourth proportional to 7,929.52, 11,894.60 and 2,086.72 is: 3,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.52 : 11,894.60 = 2,086.72 : x
  2. Step 2: Convert to fraction form
    7,929.52/11,894.60 = 2,086.72/x
  3. Step 3: Cross multiply
    7,929.52x = 11,894.60 × 2,086.72
  4. Step 4: Simplify right side
    7,929.52x = 24,820,699.71
  5. Step 5: Solve for x
    x = 24,820,699.71/7,929.52
  6. Step 6: Final answer
    x = 3,130.16

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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.