Home / 14,391.56-19,859.73-10,405.76

Finding the Fourth Proportional to 14,391.56, 19,859.73 and 10,405.76

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Solution

The fourth proportional to 14,391.56, 19,859.73 and 10,405.76 is: 14,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.56 : 19,859.73 = 10,405.76 : x
  2. Step 2: Convert to fraction form
    14,391.56/19,859.73 = 10,405.76/x
  3. Step 3: Cross multiply
    14,391.56x = 19,859.73 × 10,405.76
  4. Step 4: Simplify right side
    14,391.56x = 206,655,484.75
  5. Step 5: Solve for x
    x = 206,655,484.75/14,391.56
  6. Step 6: Final answer
    x = 14,359.50

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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.