Home / 25,123.36-37,685.84-12,636.57

Finding the Fourth Proportional to 25,123.36, 37,685.84 and 12,636.57

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Solution

The fourth proportional to 25,123.36, 37,685.84 and 12,636.57 is: 18,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,123.36 : 37,685.84 = 12,636.57 : x
  2. Step 2: Convert to fraction form
    25,123.36/37,685.84 = 12,636.57/x
  3. Step 3: Cross multiply
    25,123.36x = 37,685.84 × 12,636.57
  4. Step 4: Simplify right side
    25,123.36x = 476,219,755.17
  5. Step 5: Solve for x
    x = 476,219,755.17/25,123.36
  6. Step 6: Final answer
    x = 18,955.26

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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.