Home / 13,855.15-19,120.08-7,567.53

Finding the Fourth Proportional to 13,855.15, 19,120.08 and 7,567.53

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Solution

The fourth proportional to 13,855.15, 19,120.08 and 7,567.53 is: 10,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.15 : 19,120.08 = 7,567.53 : x
  2. Step 2: Convert to fraction form
    13,855.15/19,120.08 = 7,567.53/x
  3. Step 3: Cross multiply
    13,855.15x = 19,120.08 × 7,567.53
  4. Step 4: Simplify right side
    13,855.15x = 144,691,779.00
  5. Step 5: Solve for x
    x = 144,691,779.00/13,855.15
  6. Step 6: Final answer
    x = 10,443.18

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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.