Home / 18,566.42-25,623.74-12,899.66

Finding the Fourth Proportional to 18,566.42, 25,623.74 and 12,899.66

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Solution

The fourth proportional to 18,566.42, 25,623.74 and 12,899.66 is: 17,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.42 : 25,623.74 = 12,899.66 : x
  2. Step 2: Convert to fraction form
    18,566.42/25,623.74 = 12,899.66/x
  3. Step 3: Cross multiply
    18,566.42x = 25,623.74 × 12,899.66
  4. Step 4: Simplify right side
    18,566.42x = 330,537,438.06
  5. Step 5: Solve for x
    x = 330,537,438.06/18,566.42
  6. Step 6: Final answer
    x = 17,802.98

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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.