Home / 12,437.16-17,178.70-9,028.74

Finding the Fourth Proportional to 12,437.16, 17,178.70 and 9,028.74

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Solution

The fourth proportional to 12,437.16, 17,178.70 and 9,028.74 is: 12,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.16 : 17,178.70 = 9,028.74 : x
  2. Step 2: Convert to fraction form
    12,437.16/17,178.70 = 9,028.74/x
  3. Step 3: Cross multiply
    12,437.16x = 17,178.70 × 9,028.74
  4. Step 4: Simplify right side
    12,437.16x = 155,102,015.84
  5. Step 5: Solve for x
    x = 155,102,015.84/12,437.16
  6. Step 6: Final answer
    x = 12,470.85

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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.