Home / 15,887.40-23,814.90-9,310.20

Finding the Fourth Proportional to 15,887.40, 23,814.90 and 9,310.20

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Solution

The fourth proportional to 15,887.40, 23,814.90 and 9,310.20 is: 13,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.40 : 23,814.90 = 9,310.20 : x
  2. Step 2: Convert to fraction form
    15,887.40/23,814.90 = 9,310.20/x
  3. Step 3: Cross multiply
    15,887.40x = 23,814.90 × 9,310.20
  4. Step 4: Simplify right side
    15,887.40x = 221,721,481.98
  5. Step 5: Solve for x
    x = 221,721,481.98/15,887.40
  6. Step 6: Final answer
    x = 13,955.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.