Home / 13,977.26-19,289.02-7,690.04

Finding the Fourth Proportional to 13,977.26, 19,289.02 and 7,690.04

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Solution

The fourth proportional to 13,977.26, 19,289.02 and 7,690.04 is: 10,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.26 : 19,289.02 = 7,690.04 : x
  2. Step 2: Convert to fraction form
    13,977.26/19,289.02 = 7,690.04/x
  3. Step 3: Cross multiply
    13,977.26x = 19,289.02 × 7,690.04
  4. Step 4: Simplify right side
    13,977.26x = 148,333,335.36
  5. Step 5: Solve for x
    x = 148,333,335.36/13,977.26
  6. Step 6: Final answer
    x = 10,612.48

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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.