Home / 15,530.13-23,199.21-13,967.64

Finding the Fourth Proportional to 15,530.13, 23,199.21 and 13,967.64

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Solution

The fourth proportional to 15,530.13, 23,199.21 and 13,967.64 is: 20,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.13 : 23,199.21 = 13,967.64 : x
  2. Step 2: Convert to fraction form
    15,530.13/23,199.21 = 13,967.64/x
  3. Step 3: Cross multiply
    15,530.13x = 23,199.21 × 13,967.64
  4. Step 4: Simplify right side
    15,530.13x = 324,038,213.56
  5. Step 5: Solve for x
    x = 324,038,213.56/15,530.13
  6. Step 6: Final answer
    x = 20,865.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.