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Finding the Fourth Proportional to 13,959.54, 19,264.53 and 7,672.08

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Solution

The fourth proportional to 13,959.54, 19,264.53 and 7,672.08 is: 10,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.54 : 19,264.53 = 7,672.08 : x
  2. Step 2: Convert to fraction form
    13,959.54/19,264.53 = 7,672.08/x
  3. Step 3: Cross multiply
    13,959.54x = 19,264.53 × 7,672.08
  4. Step 4: Simplify right side
    13,959.54x = 147,799,015.32
  5. Step 5: Solve for x
    x = 147,799,015.32/13,959.54
  6. Step 6: Final answer
    x = 10,587.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.