Home / 10,634.10-16,030.82-9,920.49

Finding the Fourth Proportional to 10,634.10, 16,030.82 and 9,920.49

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Solution

The fourth proportional to 10,634.10, 16,030.82 and 9,920.49 is: 14,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,634.10 : 16,030.82 = 9,920.49 : x
  2. Step 2: Convert to fraction form
    10,634.10/16,030.82 = 9,920.49/x
  3. Step 3: Cross multiply
    10,634.10x = 16,030.82 × 9,920.49
  4. Step 4: Simplify right side
    10,634.10x = 159,033,539.90
  5. Step 5: Solve for x
    x = 159,033,539.90/10,634.10
  6. Step 6: Final answer
    x = 14,955.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.