Home / 10,419.14-14,385.96-6,445.70

Finding the Fourth Proportional to 10,419.14, 14,385.96 and 6,445.70

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Solution

The fourth proportional to 10,419.14, 14,385.96 and 6,445.70 is: 8,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.14 : 14,385.96 = 6,445.70 : x
  2. Step 2: Convert to fraction form
    10,419.14/14,385.96 = 6,445.70/x
  3. Step 3: Cross multiply
    10,419.14x = 14,385.96 × 6,445.70
  4. Step 4: Simplify right side
    10,419.14x = 92,727,582.37
  5. Step 5: Solve for x
    x = 92,727,582.37/10,419.14
  6. Step 6: Final answer
    x = 8,899.73

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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.