Home / 11,948.91-16,488.86-6,643.62

Finding the Fourth Proportional to 11,948.91, 16,488.86 and 6,643.62

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Solution

The fourth proportional to 11,948.91, 16,488.86 and 6,643.62 is: 9,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.91 : 16,488.86 = 6,643.62 : x
  2. Step 2: Convert to fraction form
    11,948.91/16,488.86 = 6,643.62/x
  3. Step 3: Cross multiply
    11,948.91x = 16,488.86 × 6,643.62
  4. Step 4: Simplify right side
    11,948.91x = 109,545,686.86
  5. Step 5: Solve for x
    x = 109,545,686.86/11,948.91
  6. Step 6: Final answer
    x = 9,167.84

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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.