Home / 13,224.65-18,248.81-7,558.25

Finding the Fourth Proportional to 13,224.65, 18,248.81 and 7,558.25

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Solution

The fourth proportional to 13,224.65, 18,248.81 and 7,558.25 is: 10,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,224.65 : 18,248.81 = 7,558.25 : x
  2. Step 2: Convert to fraction form
    13,224.65/18,248.81 = 7,558.25/x
  3. Step 3: Cross multiply
    13,224.65x = 18,248.81 × 7,558.25
  4. Step 4: Simplify right side
    13,224.65x = 137,928,939.15
  5. Step 5: Solve for x
    x = 137,928,939.15/13,224.65
  6. Step 6: Final answer
    x = 10,429.69

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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.