Home / 15,314.70-21,140.13-14,893.36

Finding the Fourth Proportional to 15,314.70, 21,140.13 and 14,893.36

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Solution

The fourth proportional to 15,314.70, 21,140.13 and 14,893.36 is: 20,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.70 : 21,140.13 = 14,893.36 : x
  2. Step 2: Convert to fraction form
    15,314.70/21,140.13 = 14,893.36/x
  3. Step 3: Cross multiply
    15,314.70x = 21,140.13 × 14,893.36
  4. Step 4: Simplify right side
    15,314.70x = 314,847,566.54
  5. Step 5: Solve for x
    x = 314,847,566.54/15,314.70
  6. Step 6: Final answer
    x = 20,558.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.