Home / 13,269.81-18,312.84-7,301.94

Finding the Fourth Proportional to 13,269.81, 18,312.84 and 7,301.94

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Solution

The fourth proportional to 13,269.81, 18,312.84 and 7,301.94 is: 10,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.81 : 18,312.84 = 7,301.94 : x
  2. Step 2: Convert to fraction form
    13,269.81/18,312.84 = 7,301.94/x
  3. Step 3: Cross multiply
    13,269.81x = 18,312.84 × 7,301.94
  4. Step 4: Simplify right side
    13,269.81x = 133,719,258.91
  5. Step 5: Solve for x
    x = 133,719,258.91/13,269.81
  6. Step 6: Final answer
    x = 10,076.95

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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.