Home / 13,037.80-19,548.15-7,415.59

Finding the Fourth Proportional to 13,037.80, 19,548.15 and 7,415.59

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Solution

The fourth proportional to 13,037.80, 19,548.15 and 7,415.59 is: 11,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,037.80 : 19,548.15 = 7,415.59 : x
  2. Step 2: Convert to fraction form
    13,037.80/19,548.15 = 7,415.59/x
  3. Step 3: Cross multiply
    13,037.80x = 19,548.15 × 7,415.59
  4. Step 4: Simplify right side
    13,037.80x = 144,961,065.66
  5. Step 5: Solve for x
    x = 144,961,065.66/13,037.80
  6. Step 6: Final answer
    x = 11,118.52

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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.