Home / 13,260.58-18,299.25-7,210.65

Finding the Fourth Proportional to 13,260.58, 18,299.25 and 7,210.65

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Solution

The fourth proportional to 13,260.58, 18,299.25 and 7,210.65 is: 9,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.58 : 18,299.25 = 7,210.65 : x
  2. Step 2: Convert to fraction form
    13,260.58/18,299.25 = 7,210.65/x
  3. Step 3: Cross multiply
    13,260.58x = 18,299.25 × 7,210.65
  4. Step 4: Simplify right side
    13,260.58x = 131,949,555.63
  5. Step 5: Solve for x
    x = 131,949,555.63/13,260.58
  6. Step 6: Final answer
    x = 9,950.51

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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.