Home / 10,947.63-15,107.75-6,473.60

Finding the Fourth Proportional to 10,947.63, 15,107.75 and 6,473.60

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Solution

The fourth proportional to 10,947.63, 15,107.75 and 6,473.60 is: 8,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.63 : 15,107.75 = 6,473.60 : x
  2. Step 2: Convert to fraction form
    10,947.63/15,107.75 = 6,473.60/x
  3. Step 3: Cross multiply
    10,947.63x = 15,107.75 × 6,473.60
  4. Step 4: Simplify right side
    10,947.63x = 97,801,422.49
  5. Step 5: Solve for x
    x = 97,801,422.49/10,947.63
  6. Step 6: Final answer
    x = 8,933.57

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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.