Home / 15,696.90-23,557.70-13,851.72

Finding the Fourth Proportional to 15,696.90, 23,557.70 and 13,851.72

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Solution

The fourth proportional to 15,696.90, 23,557.70 and 13,851.72 is: 20,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.90 : 23,557.70 = 13,851.72 : x
  2. Step 2: Convert to fraction form
    15,696.90/23,557.70 = 13,851.72/x
  3. Step 3: Cross multiply
    15,696.90x = 23,557.70 × 13,851.72
  4. Step 4: Simplify right side
    15,696.90x = 326,314,698.87
  5. Step 5: Solve for x
    x = 326,314,698.87/15,696.90
  6. Step 6: Final answer
    x = 20,788.48

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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.