Home / 15,370.07-21,211.11-8,655.93

Finding the Fourth Proportional to 15,370.07, 21,211.11 and 8,655.93

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Solution

The fourth proportional to 15,370.07, 21,211.11 and 8,655.93 is: 11,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.07 : 21,211.11 = 8,655.93 : x
  2. Step 2: Convert to fraction form
    15,370.07/21,211.11 = 8,655.93/x
  3. Step 3: Cross multiply
    15,370.07x = 21,211.11 × 8,655.93
  4. Step 4: Simplify right side
    15,370.07x = 183,601,883.38
  5. Step 5: Solve for x
    x = 183,601,883.38/15,370.07
  6. Step 6: Final answer
    x = 11,945.42

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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.