Home / 13,827.10-19,081.40-7,539.48

Finding the Fourth Proportional to 13,827.10, 19,081.40 and 7,539.48

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Solution

The fourth proportional to 13,827.10, 19,081.40 and 7,539.48 is: 10,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.10 : 19,081.40 = 7,539.48 : x
  2. Step 2: Convert to fraction form
    13,827.10/19,081.40 = 7,539.48/x
  3. Step 3: Cross multiply
    13,827.10x = 19,081.40 × 7,539.48
  4. Step 4: Simplify right side
    13,827.10x = 143,863,700.57
  5. Step 5: Solve for x
    x = 143,863,700.57/13,827.10
  6. Step 6: Final answer
    x = 10,404.47

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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.