Home / 13,226.79-18,253.50-7,258.67

Finding the Fourth Proportional to 13,226.79, 18,253.50 and 7,258.67

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Solution

The fourth proportional to 13,226.79, 18,253.50 and 7,258.67 is: 10,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.79 : 18,253.50 = 7,258.67 : x
  2. Step 2: Convert to fraction form
    13,226.79/18,253.50 = 7,258.67/x
  3. Step 3: Cross multiply
    13,226.79x = 18,253.50 × 7,258.67
  4. Step 4: Simplify right side
    13,226.79x = 132,496,128.44
  5. Step 5: Solve for x
    x = 132,496,128.44/13,226.79
  6. Step 6: Final answer
    x = 10,017.25

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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.