Home / 14,678.20-20,224.16-9,954.28

Finding the Fourth Proportional to 14,678.20, 20,224.16 and 9,954.28

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Solution

The fourth proportional to 14,678.20, 20,224.16 and 9,954.28 is: 13,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.20 : 20,224.16 = 9,954.28 : x
  2. Step 2: Convert to fraction form
    14,678.20/20,224.16 = 9,954.28/x
  3. Step 3: Cross multiply
    14,678.20x = 20,224.16 × 9,954.28
  4. Step 4: Simplify right side
    14,678.20x = 201,316,951.40
  5. Step 5: Solve for x
    x = 201,316,951.40/14,678.20
  6. Step 6: Final answer
    x = 13,715.37

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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.