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Finding the Fourth Proportional to 18,007.52, 27,017.76 and 13,068.80

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Solution

The fourth proportional to 18,007.52, 27,017.76 and 13,068.80 is: 19,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.52 : 27,017.76 = 13,068.80 : x
  2. Step 2: Convert to fraction form
    18,007.52/27,017.76 = 13,068.80/x
  3. Step 3: Cross multiply
    18,007.52x = 27,017.76 × 13,068.80
  4. Step 4: Simplify right side
    18,007.52x = 353,089,701.89
  5. Step 5: Solve for x
    x = 353,089,701.89/18,007.52
  6. Step 6: Final answer
    x = 19,607.90

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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.