Home / 19,369.18-26,729.49-12,666.16

Finding the Fourth Proportional to 19,369.18, 26,729.49 and 12,666.16

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Solution

The fourth proportional to 19,369.18, 26,729.49 and 12,666.16 is: 17,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,369.18 : 26,729.49 = 12,666.16 : x
  2. Step 2: Convert to fraction form
    19,369.18/26,729.49 = 12,666.16/x
  3. Step 3: Cross multiply
    19,369.18x = 26,729.49 × 12,666.16
  4. Step 4: Simplify right side
    19,369.18x = 338,559,997.06
  5. Step 5: Solve for x
    x = 338,559,997.06/19,369.18
  6. Step 6: Final answer
    x = 17,479.31

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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.