Home / 15,018.06-20,726.16-8,730

Finding the Fourth Proportional to 15,018.06, 20,726.16 and 8,730

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Solution

The fourth proportional to 15,018.06, 20,726.16 and 8,730 is: 12,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.06 : 20,726.16 = 8,730 : x
  2. Step 2: Convert to fraction form
    15,018.06/20,726.16 = 8,730/x
  3. Step 3: Cross multiply
    15,018.06x = 20,726.16 × 8,730
  4. Step 4: Simplify right side
    15,018.06x = 180,939,376.80
  5. Step 5: Solve for x
    x = 180,939,376.80/15,018.06
  6. Step 6: Final answer
    x = 12,048.12

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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.