Home / 14,743.50-20,345.28-8,775.06

Finding the Fourth Proportional to 14,743.50, 20,345.28 and 8,775.06

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Solution

The fourth proportional to 14,743.50, 20,345.28 and 8,775.06 is: 12,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,743.50 : 20,345.28 = 8,775.06 : x
  2. Step 2: Convert to fraction form
    14,743.50/20,345.28 = 8,775.06/x
  3. Step 3: Cross multiply
    14,743.50x = 20,345.28 × 8,775.06
  4. Step 4: Simplify right side
    14,743.50x = 178,531,052.72
  5. Step 5: Solve for x
    x = 178,531,052.72/14,743.50
  6. Step 6: Final answer
    x = 12,109.14

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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.