Home / 17,678.04-24,395.76-9,720.36

Finding the Fourth Proportional to 17,678.04, 24,395.76 and 9,720.36

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Solution

The fourth proportional to 17,678.04, 24,395.76 and 9,720.36 is: 13,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.04 : 24,395.76 = 9,720.36 : x
  2. Step 2: Convert to fraction form
    17,678.04/24,395.76 = 9,720.36/x
  3. Step 3: Cross multiply
    17,678.04x = 24,395.76 × 9,720.36
  4. Step 4: Simplify right side
    17,678.04x = 237,135,569.67
  5. Step 5: Solve for x
    x = 237,135,569.67/17,678.04
  6. Step 6: Final answer
    x = 13,414.13

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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.