Home / 18,661.57-25,758.27-12,292.81

Finding the Fourth Proportional to 18,661.57, 25,758.27 and 12,292.81

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Solution

The fourth proportional to 18,661.57, 25,758.27 and 12,292.81 is: 16,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.57 : 25,758.27 = 12,292.81 : x
  2. Step 2: Convert to fraction form
    18,661.57/25,758.27 = 12,292.81/x
  3. Step 3: Cross multiply
    18,661.57x = 25,758.27 × 12,292.81
  4. Step 4: Simplify right side
    18,661.57x = 316,641,457.57
  5. Step 5: Solve for x
    x = 316,641,457.57/18,661.57
  6. Step 6: Final answer
    x = 16,967.57

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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.