Home / 13,818.90-19,070.19-7,531.26

Finding the Fourth Proportional to 13,818.90, 19,070.19 and 7,531.26

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Solution

The fourth proportional to 13,818.90, 19,070.19 and 7,531.26 is: 10,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.90 : 19,070.19 = 7,531.26 : x
  2. Step 2: Convert to fraction form
    13,818.90/19,070.19 = 7,531.26/x
  3. Step 3: Cross multiply
    13,818.90x = 19,070.19 × 7,531.26
  4. Step 4: Simplify right side
    13,818.90x = 143,622,559.14
  5. Step 5: Solve for x
    x = 143,622,559.14/13,818.90
  6. Step 6: Final answer
    x = 10,393.20

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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.