Home / 25,127.49-37,692.08-12,640.71

Finding the Fourth Proportional to 25,127.49, 37,692.08 and 12,640.71

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Solution

The fourth proportional to 25,127.49, 37,692.08 and 12,640.71 is: 18,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,127.49 : 37,692.08 = 12,640.71 : x
  2. Step 2: Convert to fraction form
    25,127.49/37,692.08 = 12,640.71/x
  3. Step 3: Cross multiply
    25,127.49x = 37,692.08 × 12,640.71
  4. Step 4: Simplify right side
    25,127.49x = 476,454,637.21
  5. Step 5: Solve for x
    x = 476,454,637.21/25,127.49
  6. Step 6: Final answer
    x = 18,961.49

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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.