Home / 13,900.56-19,182.64-7,612.92

Finding the Fourth Proportional to 13,900.56, 19,182.64 and 7,612.92

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Solution

The fourth proportional to 13,900.56, 19,182.64 and 7,612.92 is: 10,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.56 : 19,182.64 = 7,612.92 : x
  2. Step 2: Convert to fraction form
    13,900.56/19,182.64 = 7,612.92/x
  3. Step 3: Cross multiply
    13,900.56x = 19,182.64 × 7,612.92
  4. Step 4: Simplify right side
    13,900.56x = 146,035,903.71
  5. Step 5: Solve for x
    x = 146,035,903.71/13,900.56
  6. Step 6: Final answer
    x = 10,505.76

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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.