Home / 13,810.68-19,063.08-8,145.18

Finding the Fourth Proportional to 13,810.68, 19,063.08 and 8,145.18

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Solution

The fourth proportional to 13,810.68, 19,063.08 and 8,145.18 is: 11,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.68 : 19,063.08 = 8,145.18 : x
  2. Step 2: Convert to fraction form
    13,810.68/19,063.08 = 8,145.18/x
  3. Step 3: Cross multiply
    13,810.68x = 19,063.08 × 8,145.18
  4. Step 4: Simplify right side
    13,810.68x = 155,272,217.95
  5. Step 5: Solve for x
    x = 155,272,217.95/13,810.68
  6. Step 6: Final answer
    x = 11,242.91

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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.