Home / 10,818.45-14,929.45-6,102.72

Finding the Fourth Proportional to 10,818.45, 14,929.45 and 6,102.72

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Solution

The fourth proportional to 10,818.45, 14,929.45 and 6,102.72 is: 8,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.45 : 14,929.45 = 6,102.72 : x
  2. Step 2: Convert to fraction form
    10,818.45/14,929.45 = 6,102.72/x
  3. Step 3: Cross multiply
    10,818.45x = 14,929.45 × 6,102.72
  4. Step 4: Simplify right side
    10,818.45x = 91,110,237.85
  5. Step 5: Solve for x
    x = 91,110,237.85/10,818.45
  6. Step 6: Final answer
    x = 8,421.75

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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.