Home / 13,260.87-18,300.13-7,292.58

Finding the Fourth Proportional to 13,260.87, 18,300.13 and 7,292.58

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Solution

The fourth proportional to 13,260.87, 18,300.13 and 7,292.58 is: 10,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.87 : 18,300.13 = 7,292.58 : x
  2. Step 2: Convert to fraction form
    13,260.87/18,300.13 = 7,292.58/x
  3. Step 3: Cross multiply
    13,260.87x = 18,300.13 × 7,292.58
  4. Step 4: Simplify right side
    13,260.87x = 133,455,162.04
  5. Step 5: Solve for x
    x = 133,455,162.04/13,260.87
  6. Step 6: Final answer
    x = 10,063.83

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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.