Home / 13,426.04-18,529.08-7,458.68

Finding the Fourth Proportional to 13,426.04, 18,529.08 and 7,458.68

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Solution

The fourth proportional to 13,426.04, 18,529.08 and 7,458.68 is: 10,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.04 : 18,529.08 = 7,458.68 : x
  2. Step 2: Convert to fraction form
    13,426.04/18,529.08 = 7,458.68/x
  3. Step 3: Cross multiply
    13,426.04x = 18,529.08 × 7,458.68
  4. Step 4: Simplify right side
    13,426.04x = 138,202,478.41
  5. Step 5: Solve for x
    x = 138,202,478.41/13,426.04
  6. Step 6: Final answer
    x = 10,293.61

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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.