Home / 14,913.64-20,580.56-8,199.20

Finding the Fourth Proportional to 14,913.64, 20,580.56 and 8,199.20

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Solution

The fourth proportional to 14,913.64, 20,580.56 and 8,199.20 is: 11,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.64 : 20,580.56 = 8,199.20 : x
  2. Step 2: Convert to fraction form
    14,913.64/20,580.56 = 8,199.20/x
  3. Step 3: Cross multiply
    14,913.64x = 20,580.56 × 8,199.20
  4. Step 4: Simplify right side
    14,913.64x = 168,744,127.55
  5. Step 5: Solve for x
    x = 168,744,127.55/14,913.64
  6. Step 6: Final answer
    x = 11,314.75

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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.