Home / 13,216.23-18,237.96-7,908.30

Finding the Fourth Proportional to 13,216.23, 18,237.96 and 7,908.30

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Solution

The fourth proportional to 13,216.23, 18,237.96 and 7,908.30 is: 10,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.23 : 18,237.96 = 7,908.30 : x
  2. Step 2: Convert to fraction form
    13,216.23/18,237.96 = 7,908.30/x
  3. Step 3: Cross multiply
    13,216.23x = 18,237.96 × 7,908.30
  4. Step 4: Simplify right side
    13,216.23x = 144,231,259.07
  5. Step 5: Solve for x
    x = 144,231,259.07/13,216.23
  6. Step 6: Final answer
    x = 10,913.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.