Home / 13,608.84-20,325.75-11,641.08

Finding the Fourth Proportional to 13,608.84, 20,325.75 and 11,641.08

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Solution

The fourth proportional to 13,608.84, 20,325.75 and 11,641.08 is: 17,386.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.84 : 20,325.75 = 11,641.08 : x
  2. Step 2: Convert to fraction form
    13,608.84/20,325.75 = 11,641.08/x
  3. Step 3: Cross multiply
    13,608.84x = 20,325.75 × 11,641.08
  4. Step 4: Simplify right side
    13,608.84x = 236,613,681.81
  5. Step 5: Solve for x
    x = 236,613,681.81/13,608.84
  6. Step 6: Final answer
    x = 17,386.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.