Home / 18,943.01-26,130.65-11,857.13

Finding the Fourth Proportional to 18,943.01, 26,130.65 and 11,857.13

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Solution

The fourth proportional to 18,943.01, 26,130.65 and 11,857.13 is: 16,356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.01 : 26,130.65 = 11,857.13 : x
  2. Step 2: Convert to fraction form
    18,943.01/26,130.65 = 11,857.13/x
  3. Step 3: Cross multiply
    18,943.01x = 26,130.65 × 11,857.13
  4. Step 4: Simplify right side
    18,943.01x = 309,834,514.03
  5. Step 5: Solve for x
    x = 309,834,514.03/18,943.01
  6. Step 6: Final answer
    x = 16,356.14

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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.