Home / 14,149.20-19,526.51-7,861.57

Finding the Fourth Proportional to 14,149.20, 19,526.51 and 7,861.57

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Solution

The fourth proportional to 14,149.20, 19,526.51 and 7,861.57 is: 10,849.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.20 : 19,526.51 = 7,861.57 : x
  2. Step 2: Convert to fraction form
    14,149.20/19,526.51 = 7,861.57/x
  3. Step 3: Cross multiply
    14,149.20x = 19,526.51 × 7,861.57
  4. Step 4: Simplify right side
    14,149.20x = 153,509,025.22
  5. Step 5: Solve for x
    x = 153,509,025.22/14,149.20
  6. Step 6: Final answer
    x = 10,849.31

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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.