Home / 15,690.21-23,396.91-13,512.93

Finding the Fourth Proportional to 15,690.21, 23,396.91 and 13,512.93

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Solution

The fourth proportional to 15,690.21, 23,396.91 and 13,512.93 is: 20,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.21 : 23,396.91 = 13,512.93 : x
  2. Step 2: Convert to fraction form
    15,690.21/23,396.91 = 13,512.93/x
  3. Step 3: Cross multiply
    15,690.21x = 23,396.91 × 13,512.93
  4. Step 4: Simplify right side
    15,690.21x = 316,160,807.05
  5. Step 5: Solve for x
    x = 316,160,807.05/15,690.21
  6. Step 6: Final answer
    x = 20,150.20

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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.