Home / 15,386.07-21,233.95-8,672.33

Finding the Fourth Proportional to 15,386.07, 21,233.95 and 8,672.33

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Solution

The fourth proportional to 15,386.07, 21,233.95 and 8,672.33 is: 11,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.07 : 21,233.95 = 8,672.33 : x
  2. Step 2: Convert to fraction form
    15,386.07/21,233.95 = 8,672.33/x
  3. Step 3: Cross multiply
    15,386.07x = 21,233.95 × 8,672.33
  4. Step 4: Simplify right side
    15,386.07x = 184,147,853.01
  5. Step 5: Solve for x
    x = 184,147,853.01/15,386.07
  6. Step 6: Final answer
    x = 11,968.48

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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.