Home / 18,639.72-25,723.98-10,256.22

Finding the Fourth Proportional to 18,639.72, 25,723.98 and 10,256.22

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Solution

The fourth proportional to 18,639.72, 25,723.98 and 10,256.22 is: 14,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.72 : 25,723.98 = 10,256.22 : x
  2. Step 2: Convert to fraction form
    18,639.72/25,723.98 = 10,256.22/x
  3. Step 3: Cross multiply
    18,639.72x = 25,723.98 × 10,256.22
  4. Step 4: Simplify right side
    18,639.72x = 263,830,798.16
  5. Step 5: Solve for x
    x = 263,830,798.16/18,639.72
  6. Step 6: Final answer
    x = 14,154.23

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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.