Home / 15,615.63-23,393.48-13,086.81

Finding the Fourth Proportional to 15,615.63, 23,393.48 and 13,086.81

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Solution

The fourth proportional to 15,615.63, 23,393.48 and 13,086.81 is: 19,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.63 : 23,393.48 = 13,086.81 : x
  2. Step 2: Convert to fraction form
    15,615.63/23,393.48 = 13,086.81/x
  3. Step 3: Cross multiply
    15,615.63x = 23,393.48 × 13,086.81
  4. Step 4: Simplify right side
    15,615.63x = 306,145,962.56
  5. Step 5: Solve for x
    x = 306,145,962.56/15,615.63
  6. Step 6: Final answer
    x = 19,605.10

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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.