Home / 18,852.55-28,283.58-13,316.74

Finding the Fourth Proportional to 18,852.55, 28,283.58 and 13,316.74

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Solution

The fourth proportional to 18,852.55, 28,283.58 and 13,316.74 is: 19,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.55 : 28,283.58 = 13,316.74 : x
  2. Step 2: Convert to fraction form
    18,852.55/28,283.58 = 13,316.74/x
  3. Step 3: Cross multiply
    18,852.55x = 28,283.58 × 13,316.74
  4. Step 4: Simplify right side
    18,852.55x = 376,645,010.42
  5. Step 5: Solve for x
    x = 376,645,010.42/18,852.55
  6. Step 6: Final answer
    x = 19,978.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.