Home / 14,160.24-21,224.34-7,129.08

Finding the Fourth Proportional to 14,160.24, 21,224.34 and 7,129.08

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Solution

The fourth proportional to 14,160.24, 21,224.34 and 7,129.08 is: 10,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.24 : 21,224.34 = 7,129.08 : x
  2. Step 2: Convert to fraction form
    14,160.24/21,224.34 = 7,129.08/x
  3. Step 3: Cross multiply
    14,160.24x = 21,224.34 × 7,129.08
  4. Step 4: Simplify right side
    14,160.24x = 151,310,017.81
  5. Step 5: Solve for x
    x = 151,310,017.81/14,160.24
  6. Step 6: Final answer
    x = 10,685.55

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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.