Home / 10,859.44-14,985.92-6,143.68

Finding the Fourth Proportional to 10,859.44, 14,985.92 and 6,143.68

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Solution

The fourth proportional to 10,859.44, 14,985.92 and 6,143.68 is: 8,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.44 : 14,985.92 = 6,143.68 : x
  2. Step 2: Convert to fraction form
    10,859.44/14,985.92 = 6,143.68/x
  3. Step 3: Cross multiply
    10,859.44x = 14,985.92 × 6,143.68
  4. Step 4: Simplify right side
    10,859.44x = 92,068,696.99
  5. Step 5: Solve for x
    x = 92,068,696.99/10,859.44
  6. Step 6: Final answer
    x = 8,478.22

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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.