Home / 16,670.47-23,004.40-9,115.33

Finding the Fourth Proportional to 16,670.47, 23,004.40 and 9,115.33

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Solution

The fourth proportional to 16,670.47, 23,004.40 and 9,115.33 is: 12,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,670.47 : 23,004.40 = 9,115.33 : x
  2. Step 2: Convert to fraction form
    16,670.47/23,004.40 = 9,115.33/x
  3. Step 3: Cross multiply
    16,670.47x = 23,004.40 × 9,115.33
  4. Step 4: Simplify right side
    16,670.47x = 209,692,709.39
  5. Step 5: Solve for x
    x = 209,692,709.39/16,670.47
  6. Step 6: Final answer
    x = 12,578.69

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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.