Home / 12,315.62-16,995.45-6,726.50

Finding the Fourth Proportional to 12,315.62, 16,995.45 and 6,726.50

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Solution

The fourth proportional to 12,315.62, 16,995.45 and 6,726.50 is: 9,282.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.62 : 16,995.45 = 6,726.50 : x
  2. Step 2: Convert to fraction form
    12,315.62/16,995.45 = 6,726.50/x
  3. Step 3: Cross multiply
    12,315.62x = 16,995.45 × 6,726.50
  4. Step 4: Simplify right side
    12,315.62x = 114,319,894.43
  5. Step 5: Solve for x
    x = 114,319,894.43/12,315.62
  6. Step 6: Final answer
    x = 9,282.51

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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.