Home / 10,398.82-14,348.70-6,421.24

Finding the Fourth Proportional to 10,398.82, 14,348.70 and 6,421.24

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Solution

The fourth proportional to 10,398.82, 14,348.70 and 6,421.24 is: 8,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,398.82 : 14,348.70 = 6,421.24 : x
  2. Step 2: Convert to fraction form
    10,398.82/14,348.70 = 6,421.24/x
  3. Step 3: Cross multiply
    10,398.82x = 14,348.70 × 6,421.24
  4. Step 4: Simplify right side
    10,398.82x = 92,136,446.39
  5. Step 5: Solve for x
    x = 92,136,446.39/10,398.82
  6. Step 6: Final answer
    x = 8,860.28

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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.