Home / 10,629.91-15,931-6,625.64

Finding the Fourth Proportional to 10,629.91, 15,931 and 6,625.64

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Solution

The fourth proportional to 10,629.91, 15,931 and 6,625.64 is: 9,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.91 : 15,931 = 6,625.64 : x
  2. Step 2: Convert to fraction form
    10,629.91/15,931 = 6,625.64/x
  3. Step 3: Cross multiply
    10,629.91x = 15,931 × 6,625.64
  4. Step 4: Simplify right side
    10,629.91x = 105,553,070.84
  5. Step 5: Solve for x
    x = 105,553,070.84/10,629.91
  6. Step 6: Final answer
    x = 9,929.82

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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.