Home / 15,842.09-21,867.54-9,130.38

Finding the Fourth Proportional to 15,842.09, 21,867.54 and 9,130.38

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Solution

The fourth proportional to 15,842.09, 21,867.54 and 9,130.38 is: 12,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.09 : 21,867.54 = 9,130.38 : x
  2. Step 2: Convert to fraction form
    15,842.09/21,867.54 = 9,130.38/x
  3. Step 3: Cross multiply
    15,842.09x = 21,867.54 × 9,130.38
  4. Step 4: Simplify right side
    15,842.09x = 199,658,949.87
  5. Step 5: Solve for x
    x = 199,658,949.87/15,842.09
  6. Step 6: Final answer
    x = 12,603.07

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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.