Home / 13,820.73-19,073.11-7,853.40

Finding the Fourth Proportional to 13,820.73, 19,073.11 and 7,853.40

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Solution

The fourth proportional to 13,820.73, 19,073.11 and 7,853.40 is: 10,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.73 : 19,073.11 = 7,853.40 : x
  2. Step 2: Convert to fraction form
    13,820.73/19,073.11 = 7,853.40/x
  3. Step 3: Cross multiply
    13,820.73x = 19,073.11 × 7,853.40
  4. Step 4: Simplify right side
    13,820.73x = 149,788,762.07
  5. Step 5: Solve for x
    x = 149,788,762.07/13,820.73
  6. Step 6: Final answer
    x = 10,837.98

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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.