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Finding the Fourth Proportional to 11,595.88, 15,995.62 and 7,399.40

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Solution

The fourth proportional to 11,595.88, 15,995.62 and 7,399.40 is: 10,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,595.88 : 15,995.62 = 7,399.40 : x
  2. Step 2: Convert to fraction form
    11,595.88/15,995.62 = 7,399.40/x
  3. Step 3: Cross multiply
    11,595.88x = 15,995.62 × 7,399.40
  4. Step 4: Simplify right side
    11,595.88x = 118,357,990.63
  5. Step 5: Solve for x
    x = 118,357,990.63/11,595.88
  6. Step 6: Final answer
    x = 10,206.90

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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.