Home / 12,700.14-19,047.15-3,813.60

Finding the Fourth Proportional to 12,700.14, 19,047.15 and 3,813.60

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Solution

The fourth proportional to 12,700.14, 19,047.15 and 3,813.60 is: 5,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.14 : 19,047.15 = 3,813.60 : x
  2. Step 2: Convert to fraction form
    12,700.14/19,047.15 = 3,813.60/x
  3. Step 3: Cross multiply
    12,700.14x = 19,047.15 × 3,813.60
  4. Step 4: Simplify right side
    12,700.14x = 72,638,211.24
  5. Step 5: Solve for x
    x = 72,638,211.24/12,700.14
  6. Step 6: Final answer
    x = 5,719.48

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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.