Home / 13,362.72-18,428.30-11,473.70

Finding the Fourth Proportional to 13,362.72, 18,428.30 and 11,473.70

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Solution

The fourth proportional to 13,362.72, 18,428.30 and 11,473.70 is: 15,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.72 : 18,428.30 = 11,473.70 : x
  2. Step 2: Convert to fraction form
    13,362.72/18,428.30 = 11,473.70/x
  3. Step 3: Cross multiply
    13,362.72x = 18,428.30 × 11,473.70
  4. Step 4: Simplify right side
    13,362.72x = 211,440,785.71
  5. Step 5: Solve for x
    x = 211,440,785.71/13,362.72
  6. Step 6: Final answer
    x = 15,823.18

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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.