Home / 10,859.45-14,986.35-6,143.63

Finding the Fourth Proportional to 10,859.45, 14,986.35 and 6,143.63

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Solution

The fourth proportional to 10,859.45, 14,986.35 and 6,143.63 is: 8,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.45 : 14,986.35 = 6,143.63 : x
  2. Step 2: Convert to fraction form
    10,859.45/14,986.35 = 6,143.63/x
  3. Step 3: Cross multiply
    10,859.45x = 14,986.35 × 6,143.63
  4. Step 4: Simplify right side
    10,859.45x = 92,070,514.52
  5. Step 5: Solve for x
    x = 92,070,514.52/10,859.45
  6. Step 6: Final answer
    x = 8,478.38

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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.