Home / 13,891.50-19,170.45-7,603.74

Finding the Fourth Proportional to 13,891.50, 19,170.45 and 7,603.74

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Solution

The fourth proportional to 13,891.50, 19,170.45 and 7,603.74 is: 10,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.50 : 19,170.45 = 7,603.74 : x
  2. Step 2: Convert to fraction form
    13,891.50/19,170.45 = 7,603.74/x
  3. Step 3: Cross multiply
    13,891.50x = 19,170.45 × 7,603.74
  4. Step 4: Simplify right side
    13,891.50x = 145,767,117.48
  5. Step 5: Solve for x
    x = 145,767,117.48/13,891.50
  6. Step 6: Final answer
    x = 10,493.26

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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.