Home / 13,818.52-19,075.96-8,151.36

Finding the Fourth Proportional to 13,818.52, 19,075.96 and 8,151.36

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Solution

The fourth proportional to 13,818.52, 19,075.96 and 8,151.36 is: 11,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.52 : 19,075.96 = 8,151.36 : x
  2. Step 2: Convert to fraction form
    13,818.52/19,075.96 = 8,151.36/x
  3. Step 3: Cross multiply
    13,818.52x = 19,075.96 × 8,151.36
  4. Step 4: Simplify right side
    13,818.52x = 155,495,017.31
  5. Step 5: Solve for x
    x = 155,495,017.31/13,818.52
  6. Step 6: Final answer
    x = 11,252.65

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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.