Home / 18,681.77-25,784.67-11,132.52

Finding the Fourth Proportional to 18,681.77, 25,784.67 and 11,132.52

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Solution

The fourth proportional to 18,681.77, 25,784.67 and 11,132.52 is: 15,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.77 : 25,784.67 = 11,132.52 : x
  2. Step 2: Convert to fraction form
    18,681.77/25,784.67 = 11,132.52/x
  3. Step 3: Cross multiply
    18,681.77x = 25,784.67 × 11,132.52
  4. Step 4: Simplify right side
    18,681.77x = 287,048,354.47
  5. Step 5: Solve for x
    x = 287,048,354.47/18,681.77
  6. Step 6: Final answer
    x = 15,365.16

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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.