Home / 18,701.34-28,036.74-8,712.36

Finding the Fourth Proportional to 18,701.34, 28,036.74 and 8,712.36

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Solution

The fourth proportional to 18,701.34, 28,036.74 and 8,712.36 is: 13,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.34 : 28,036.74 = 8,712.36 : x
  2. Step 2: Convert to fraction form
    18,701.34/28,036.74 = 8,712.36/x
  3. Step 3: Cross multiply
    18,701.34x = 28,036.74 × 8,712.36
  4. Step 4: Simplify right side
    18,701.34x = 244,266,172.11
  5. Step 5: Solve for x
    x = 244,266,172.11/18,701.34
  6. Step 6: Final answer
    x = 13,061.43

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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.