Home / 13,366.51-18,439.29-8,830.97

Finding the Fourth Proportional to 13,366.51, 18,439.29 and 8,830.97

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Solution

The fourth proportional to 13,366.51, 18,439.29 and 8,830.97 is: 12,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.51 : 18,439.29 = 8,830.97 : x
  2. Step 2: Convert to fraction form
    13,366.51/18,439.29 = 8,830.97/x
  3. Step 3: Cross multiply
    13,366.51x = 18,439.29 × 8,830.97
  4. Step 4: Simplify right side
    13,366.51x = 162,836,816.81
  5. Step 5: Solve for x
    x = 162,836,816.81/13,366.51
  6. Step 6: Final answer
    x = 12,182.45

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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.