Home / 14,389.85-21,589.09-8,697.16

Finding the Fourth Proportional to 14,389.85, 21,589.09 and 8,697.16

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Solution

The fourth proportional to 14,389.85, 21,589.09 and 8,697.16 is: 13,048.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.85 : 21,589.09 = 8,697.16 : x
  2. Step 2: Convert to fraction form
    14,389.85/21,589.09 = 8,697.16/x
  3. Step 3: Cross multiply
    14,389.85x = 21,589.09 × 8,697.16
  4. Step 4: Simplify right side
    14,389.85x = 187,763,775.23
  5. Step 5: Solve for x
    x = 187,763,775.23/14,389.85
  6. Step 6: Final answer
    x = 13,048.35

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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.