Home / 13,203.62-18,206.07-8,417.18

Finding the Fourth Proportional to 13,203.62, 18,206.07 and 8,417.18

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Solution

The fourth proportional to 13,203.62, 18,206.07 and 8,417.18 is: 11,606.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.62 : 18,206.07 = 8,417.18 : x
  2. Step 2: Convert to fraction form
    13,203.62/18,206.07 = 8,417.18/x
  3. Step 3: Cross multiply
    13,203.62x = 18,206.07 × 8,417.18
  4. Step 4: Simplify right side
    13,203.62x = 153,243,768.28
  5. Step 5: Solve for x
    x = 153,243,768.28/13,203.62
  6. Step 6: Final answer
    x = 11,606.19

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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.