Home / 18,008.60-26,988.06-8,654.36

Finding the Fourth Proportional to 18,008.60, 26,988.06 and 8,654.36

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Solution

The fourth proportional to 18,008.60, 26,988.06 and 8,654.36 is: 12,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008.60 : 26,988.06 = 8,654.36 : x
  2. Step 2: Convert to fraction form
    18,008.60/26,988.06 = 8,654.36/x
  3. Step 3: Cross multiply
    18,008.60x = 26,988.06 × 8,654.36
  4. Step 4: Simplify right side
    18,008.60x = 233,564,386.94
  5. Step 5: Solve for x
    x = 233,564,386.94/18,008.60
  6. Step 6: Final answer
    x = 12,969.60

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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.