Home / 10,420.32-14,381.28-6,228.48

Finding the Fourth Proportional to 10,420.32, 14,381.28 and 6,228.48

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Solution

The fourth proportional to 10,420.32, 14,381.28 and 6,228.48 is: 8,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.32 : 14,381.28 = 6,228.48 : x
  2. Step 2: Convert to fraction form
    10,420.32/14,381.28 = 6,228.48/x
  3. Step 3: Cross multiply
    10,420.32x = 14,381.28 × 6,228.48
  4. Step 4: Simplify right side
    10,420.32x = 89,573,514.85
  5. Step 5: Solve for x
    x = 89,573,514.85/10,420.32
  6. Step 6: Final answer
    x = 8,596.04

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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.