Home / 13,219.67-18,246.06-10,342.71

Finding the Fourth Proportional to 13,219.67, 18,246.06 and 10,342.71

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Solution

The fourth proportional to 13,219.67, 18,246.06 and 10,342.71 is: 14,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.67 : 18,246.06 = 10,342.71 : x
  2. Step 2: Convert to fraction form
    13,219.67/18,246.06 = 10,342.71/x
  3. Step 3: Cross multiply
    13,219.67x = 18,246.06 × 10,342.71
  4. Step 4: Simplify right side
    13,219.67x = 188,713,707.22
  5. Step 5: Solve for x
    x = 188,713,707.22/13,219.67
  6. Step 6: Final answer
    x = 14,275.23

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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.