Home / 15,604.64-21,533.28-9,636.40

Finding the Fourth Proportional to 15,604.64, 21,533.28 and 9,636.40

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Solution

The fourth proportional to 15,604.64, 21,533.28 and 9,636.40 is: 13,297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.64 : 21,533.28 = 9,636.40 : x
  2. Step 2: Convert to fraction form
    15,604.64/21,533.28 = 9,636.40/x
  3. Step 3: Cross multiply
    15,604.64x = 21,533.28 × 9,636.40
  4. Step 4: Simplify right side
    15,604.64x = 207,503,299.39
  5. Step 5: Solve for x
    x = 207,503,299.39/15,604.64
  6. Step 6: Final answer
    x = 13,297.54

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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.