Home / 13,810.60-19,057.97-7,841.47

Finding the Fourth Proportional to 13,810.60, 19,057.97 and 7,841.47

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Solution

The fourth proportional to 13,810.60, 19,057.97 and 7,841.47 is: 10,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.60 : 19,057.97 = 7,841.47 : x
  2. Step 2: Convert to fraction form
    13,810.60/19,057.97 = 7,841.47/x
  3. Step 3: Cross multiply
    13,810.60x = 19,057.97 × 7,841.47
  4. Step 4: Simplify right side
    13,810.60x = 149,442,460.81
  5. Step 5: Solve for x
    x = 149,442,460.81/13,810.60
  6. Step 6: Final answer
    x = 10,820.86

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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.