Home / 14,309.08-21,428.96-7,270.56

Finding the Fourth Proportional to 14,309.08, 21,428.96 and 7,270.56

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Solution

The fourth proportional to 14,309.08, 21,428.96 and 7,270.56 is: 10,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.08 : 21,428.96 = 7,270.56 : x
  2. Step 2: Convert to fraction form
    14,309.08/21,428.96 = 7,270.56/x
  3. Step 3: Cross multiply
    14,309.08x = 21,428.96 × 7,270.56
  4. Step 4: Simplify right side
    14,309.08x = 155,800,539.42
  5. Step 5: Solve for x
    x = 155,800,539.42/14,309.08
  6. Step 6: Final answer
    x = 10,888.23

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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.