Home / 12,659.32-18,960.45-7,386.45

Finding the Fourth Proportional to 12,659.32, 18,960.45 and 7,386.45

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Solution

The fourth proportional to 12,659.32, 18,960.45 and 7,386.45 is: 11,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.32 : 18,960.45 = 7,386.45 : x
  2. Step 2: Convert to fraction form
    12,659.32/18,960.45 = 7,386.45/x
  3. Step 3: Cross multiply
    12,659.32x = 18,960.45 × 7,386.45
  4. Step 4: Simplify right side
    12,659.32x = 140,050,415.90
  5. Step 5: Solve for x
    x = 140,050,415.90/12,659.32
  6. Step 6: Final answer
    x = 11,063.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.