Home / 13,849.20-19,111.90-7,561.58

Finding the Fourth Proportional to 13,849.20, 19,111.90 and 7,561.58

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Solution

The fourth proportional to 13,849.20, 19,111.90 and 7,561.58 is: 10,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.20 : 19,111.90 = 7,561.58 : x
  2. Step 2: Convert to fraction form
    13,849.20/19,111.90 = 7,561.58/x
  3. Step 3: Cross multiply
    13,849.20x = 19,111.90 × 7,561.58
  4. Step 4: Simplify right side
    13,849.20x = 144,516,160.80
  5. Step 5: Solve for x
    x = 144,516,160.80/13,849.20
  6. Step 6: Final answer
    x = 10,434.98

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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.