Home / 12,437.81-17,163.75-6,772.45

Finding the Fourth Proportional to 12,437.81, 17,163.75 and 6,772.45

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Solution

The fourth proportional to 12,437.81, 17,163.75 and 6,772.45 is: 9,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.81 : 17,163.75 = 6,772.45 : x
  2. Step 2: Convert to fraction form
    12,437.81/17,163.75 = 6,772.45/x
  3. Step 3: Cross multiply
    12,437.81x = 17,163.75 × 6,772.45
  4. Step 4: Simplify right side
    12,437.81x = 116,240,552.87
  5. Step 5: Solve for x
    x = 116,240,552.87/12,437.81
  6. Step 6: Final answer
    x = 9,345.74

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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.