Home / 13,258.08-18,294.12-7,668

Finding the Fourth Proportional to 13,258.08, 18,294.12 and 7,668

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Solution

The fourth proportional to 13,258.08, 18,294.12 and 7,668 is: 10,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.08 : 18,294.12 = 7,668 : x
  2. Step 2: Convert to fraction form
    13,258.08/18,294.12 = 7,668/x
  3. Step 3: Cross multiply
    13,258.08x = 18,294.12 × 7,668
  4. Step 4: Simplify right side
    13,258.08x = 140,279,312.16
  5. Step 5: Solve for x
    x = 140,279,312.16/13,258.08
  6. Step 6: Final answer
    x = 10,580.67

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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.