Home / 14,750.83-20,357.28-8,378.56

Finding the Fourth Proportional to 14,750.83, 20,357.28 and 8,378.56

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Solution

The fourth proportional to 14,750.83, 20,357.28 and 8,378.56 is: 11,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.83 : 20,357.28 = 8,378.56 : x
  2. Step 2: Convert to fraction form
    14,750.83/20,357.28 = 8,378.56/x
  3. Step 3: Cross multiply
    14,750.83x = 20,357.28 × 8,378.56
  4. Step 4: Simplify right side
    14,750.83x = 170,564,548.24
  5. Step 5: Solve for x
    x = 170,564,548.24/14,750.83
  6. Step 6: Final answer
    x = 11,563.05

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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.