Home / 13,660.71-18,853.59-7,693.56

Finding the Fourth Proportional to 13,660.71, 18,853.59 and 7,693.56

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Solution

The fourth proportional to 13,660.71, 18,853.59 and 7,693.56 is: 10,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.71 : 18,853.59 = 7,693.56 : x
  2. Step 2: Convert to fraction form
    13,660.71/18,853.59 = 7,693.56/x
  3. Step 3: Cross multiply
    13,660.71x = 18,853.59 × 7,693.56
  4. Step 4: Simplify right side
    13,660.71x = 145,051,225.88
  5. Step 5: Solve for x
    x = 145,051,225.88/13,660.71
  6. Step 6: Final answer
    x = 10,618.13

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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.