Home / 18,866.79-28,306.31-9,004.78

Finding the Fourth Proportional to 18,866.79, 28,306.31 and 9,004.78

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Solution

The fourth proportional to 18,866.79, 28,306.31 and 9,004.78 is: 13,510.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.79 : 28,306.31 = 9,004.78 : x
  2. Step 2: Convert to fraction form
    18,866.79/28,306.31 = 9,004.78/x
  3. Step 3: Cross multiply
    18,866.79x = 28,306.31 × 9,004.78
  4. Step 4: Simplify right side
    18,866.79x = 254,892,094.16
  5. Step 5: Solve for x
    x = 254,892,094.16/18,866.79
  6. Step 6: Final answer
    x = 13,510.09

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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.