Home / 13,916.76-20,875.08-3,528.48

Finding the Fourth Proportional to 13,916.76, 20,875.08 and 3,528.48

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Solution

The fourth proportional to 13,916.76, 20,875.08 and 3,528.48 is: 5,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.76 : 20,875.08 = 3,528.48 : x
  2. Step 2: Convert to fraction form
    13,916.76/20,875.08 = 3,528.48/x
  3. Step 3: Cross multiply
    13,916.76x = 20,875.08 × 3,528.48
  4. Step 4: Simplify right side
    13,916.76x = 73,657,302.28
  5. Step 5: Solve for x
    x = 73,657,302.28/13,916.76
  6. Step 6: Final answer
    x = 5,292.70

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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.