Home / 13,660.49-18,842.01-8,357.93

Finding the Fourth Proportional to 13,660.49, 18,842.01 and 8,357.93

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Solution

The fourth proportional to 13,660.49, 18,842.01 and 8,357.93 is: 11,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.49 : 18,842.01 = 8,357.93 : x
  2. Step 2: Convert to fraction form
    13,660.49/18,842.01 = 8,357.93/x
  3. Step 3: Cross multiply
    13,660.49x = 18,842.01 × 8,357.93
  4. Step 4: Simplify right side
    13,660.49x = 157,480,106.43
  5. Step 5: Solve for x
    x = 157,480,106.43/13,660.49
  6. Step 6: Final answer
    x = 11,528.15

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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.