Home / 14,089.49-21,135.65-5,207.16

Finding the Fourth Proportional to 14,089.49, 21,135.65 and 5,207.16

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Solution

The fourth proportional to 14,089.49, 21,135.65 and 5,207.16 is: 7,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.49 : 21,135.65 = 5,207.16 : x
  2. Step 2: Convert to fraction form
    14,089.49/21,135.65 = 5,207.16/x
  3. Step 3: Cross multiply
    14,089.49x = 21,135.65 × 5,207.16
  4. Step 4: Simplify right side
    14,089.49x = 110,056,674.88
  5. Step 5: Solve for x
    x = 110,056,674.88/14,089.49
  6. Step 6: Final answer
    x = 7,811.26

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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.