Home / 14,486.78-21,688.80-9,541.28

Finding the Fourth Proportional to 14,486.78, 21,688.80 and 9,541.28

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Solution

The fourth proportional to 14,486.78, 21,688.80 and 9,541.28 is: 14,284.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.78 : 21,688.80 = 9,541.28 : x
  2. Step 2: Convert to fraction form
    14,486.78/21,688.80 = 9,541.28/x
  3. Step 3: Cross multiply
    14,486.78x = 21,688.80 × 9,541.28
  4. Step 4: Simplify right side
    14,486.78x = 206,938,913.66
  5. Step 5: Solve for x
    x = 206,938,913.66/14,486.78
  6. Step 6: Final answer
    x = 14,284.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.