Home / 18,713.90-28,056.80-11,316.84

Finding the Fourth Proportional to 18,713.90, 28,056.80 and 11,316.84

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Solution

The fourth proportional to 18,713.90, 28,056.80 and 11,316.84 is: 16,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.90 : 28,056.80 = 11,316.84 : x
  2. Step 2: Convert to fraction form
    18,713.90/28,056.80 = 11,316.84/x
  3. Step 3: Cross multiply
    18,713.90x = 28,056.80 × 11,316.84
  4. Step 4: Simplify right side
    18,713.90x = 317,514,316.51
  5. Step 5: Solve for x
    x = 317,514,316.51/18,713.90
  6. Step 6: Final answer
    x = 16,966.76

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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.