Home / 11,921.34-16,444.61-7,437.30

Finding the Fourth Proportional to 11,921.34, 16,444.61 and 7,437.30

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Solution

The fourth proportional to 11,921.34, 16,444.61 and 7,437.30 is: 10,259.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.34 : 16,444.61 = 7,437.30 : x
  2. Step 2: Convert to fraction form
    11,921.34/16,444.61 = 7,437.30/x
  3. Step 3: Cross multiply
    11,921.34x = 16,444.61 × 7,437.30
  4. Step 4: Simplify right side
    11,921.34x = 122,303,497.95
  5. Step 5: Solve for x
    x = 122,303,497.95/11,921.34
  6. Step 6: Final answer
    x = 10,259.21

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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.