Home / 14,490.10-20,001.09-8,521.48

Finding the Fourth Proportional to 14,490.10, 20,001.09 and 8,521.48

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Solution

The fourth proportional to 14,490.10, 20,001.09 and 8,521.48 is: 11,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.10 : 20,001.09 = 8,521.48 : x
  2. Step 2: Convert to fraction form
    14,490.10/20,001.09 = 8,521.48/x
  3. Step 3: Cross multiply
    14,490.10x = 20,001.09 × 8,521.48
  4. Step 4: Simplify right side
    14,490.10x = 170,438,888.41
  5. Step 5: Solve for x
    x = 170,438,888.41/14,490.10
  6. Step 6: Final answer
    x = 11,762.44

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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.