Home / 10,377.09-14,319.90-6,398.58

Finding the Fourth Proportional to 10,377.09, 14,319.90 and 6,398.58

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Solution

The fourth proportional to 10,377.09, 14,319.90 and 6,398.58 is: 8,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.09 : 14,319.90 = 6,398.58 : x
  2. Step 2: Convert to fraction form
    10,377.09/14,319.90 = 6,398.58/x
  3. Step 3: Cross multiply
    10,377.09x = 14,319.90 × 6,398.58
  4. Step 4: Simplify right side
    10,377.09x = 91,627,025.74
  5. Step 5: Solve for x
    x = 91,627,025.74/10,377.09
  6. Step 6: Final answer
    x = 8,829.74

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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.