Home / 15,897.06-21,941.91-9,186.57

Finding the Fourth Proportional to 15,897.06, 21,941.91 and 9,186.57

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Solution

The fourth proportional to 15,897.06, 21,941.91 and 9,186.57 is: 12,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897.06 : 21,941.91 = 9,186.57 : x
  2. Step 2: Convert to fraction form
    15,897.06/21,941.91 = 9,186.57/x
  3. Step 3: Cross multiply
    15,897.06x = 21,941.91 × 9,186.57
  4. Step 4: Simplify right side
    15,897.06x = 201,570,892.15
  5. Step 5: Solve for x
    x = 201,570,892.15/15,897.06
  6. Step 6: Final answer
    x = 12,679.76

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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.