Home / 15,364.14-21,203.40-8,650.05

Finding the Fourth Proportional to 15,364.14, 21,203.40 and 8,650.05

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Solution

The fourth proportional to 15,364.14, 21,203.40 and 8,650.05 is: 11,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.14 : 21,203.40 = 8,650.05 : x
  2. Step 2: Convert to fraction form
    15,364.14/21,203.40 = 8,650.05/x
  3. Step 3: Cross multiply
    15,364.14x = 21,203.40 × 8,650.05
  4. Step 4: Simplify right side
    15,364.14x = 183,410,470.17
  5. Step 5: Solve for x
    x = 183,410,470.17/15,364.14
  6. Step 6: Final answer
    x = 11,937.57

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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.