Home / 15,206.84-20,969.32-10,433.76

Finding the Fourth Proportional to 15,206.84, 20,969.32 and 10,433.76

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Solution

The fourth proportional to 15,206.84, 20,969.32 and 10,433.76 is: 14,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206.84 : 20,969.32 = 10,433.76 : x
  2. Step 2: Convert to fraction form
    15,206.84/20,969.32 = 10,433.76/x
  3. Step 3: Cross multiply
    15,206.84x = 20,969.32 × 10,433.76
  4. Step 4: Simplify right side
    15,206.84x = 218,788,781.90
  5. Step 5: Solve for x
    x = 218,788,781.90/15,206.84
  6. Step 6: Final answer
    x = 14,387.53

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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.