Home / 11,586.56-15,983.52-7,390.40

Finding the Fourth Proportional to 11,586.56, 15,983.52 and 7,390.40

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Solution

The fourth proportional to 11,586.56, 15,983.52 and 7,390.40 is: 10,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.56 : 15,983.52 = 7,390.40 : x
  2. Step 2: Convert to fraction form
    11,586.56/15,983.52 = 7,390.40/x
  3. Step 3: Cross multiply
    11,586.56x = 15,983.52 × 7,390.40
  4. Step 4: Simplify right side
    11,586.56x = 118,124,606.21
  5. Step 5: Solve for x
    x = 118,124,606.21/11,586.56
  6. Step 6: Final answer
    x = 10,194.97

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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.