Home / 13,589.04-20,385.72-6,664.08

Finding the Fourth Proportional to 13,589.04, 20,385.72 and 6,664.08

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Solution

The fourth proportional to 13,589.04, 20,385.72 and 6,664.08 is: 9,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.04 : 20,385.72 = 6,664.08 : x
  2. Step 2: Convert to fraction form
    13,589.04/20,385.72 = 6,664.08/x
  3. Step 3: Cross multiply
    13,589.04x = 20,385.72 × 6,664.08
  4. Step 4: Simplify right side
    13,589.04x = 135,852,068.94
  5. Step 5: Solve for x
    x = 135,852,068.94/13,589.04
  6. Step 6: Final answer
    x = 9,997.18

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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.