Home / 13,486.77-18,601.25-9,240.35

Finding the Fourth Proportional to 13,486.77, 18,601.25 and 9,240.35

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Solution

The fourth proportional to 13,486.77, 18,601.25 and 9,240.35 is: 12,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.77 : 18,601.25 = 9,240.35 : x
  2. Step 2: Convert to fraction form
    13,486.77/18,601.25 = 9,240.35/x
  3. Step 3: Cross multiply
    13,486.77x = 18,601.25 × 9,240.35
  4. Step 4: Simplify right side
    13,486.77x = 171,881,921.23
  5. Step 5: Solve for x
    x = 171,881,921.23/13,486.77
  6. Step 6: Final answer
    x = 12,744.48

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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.