Home / 15,364.04-21,200.76-8,649.56

Finding the Fourth Proportional to 15,364.04, 21,200.76 and 8,649.56

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Solution

The fourth proportional to 15,364.04, 21,200.76 and 8,649.56 is: 11,935.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.04 : 21,200.76 = 8,649.56 : x
  2. Step 2: Convert to fraction form
    15,364.04/21,200.76 = 8,649.56/x
  3. Step 3: Cross multiply
    15,364.04x = 21,200.76 × 8,649.56
  4. Step 4: Simplify right side
    15,364.04x = 183,377,245.67
  5. Step 5: Solve for x
    x = 183,377,245.67/15,364.04
  6. Step 6: Final answer
    x = 11,935.48

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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.