Home / 12,505.49-18,758.23-4,712.48

Finding the Fourth Proportional to 12,505.49, 18,758.23 and 4,712.48

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Solution

The fourth proportional to 12,505.49, 18,758.23 and 4,712.48 is: 7,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.49 : 18,758.23 = 4,712.48 : x
  2. Step 2: Convert to fraction form
    12,505.49/18,758.23 = 4,712.48/x
  3. Step 3: Cross multiply
    12,505.49x = 18,758.23 × 4,712.48
  4. Step 4: Simplify right side
    12,505.49x = 88,397,774.99
  5. Step 5: Solve for x
    x = 88,397,774.99/12,505.49
  6. Step 6: Final answer
    x = 7,068.72

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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.