Home / 15,708.18-21,676.14-9,334.49

Finding the Fourth Proportional to 15,708.18, 21,676.14 and 9,334.49

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Solution

The fourth proportional to 15,708.18, 21,676.14 and 9,334.49 is: 12,880.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.18 : 21,676.14 = 9,334.49 : x
  2. Step 2: Convert to fraction form
    15,708.18/21,676.14 = 9,334.49/x
  3. Step 3: Cross multiply
    15,708.18x = 21,676.14 × 9,334.49
  4. Step 4: Simplify right side
    15,708.18x = 202,335,712.07
  5. Step 5: Solve for x
    x = 202,335,712.07/15,708.18
  6. Step 6: Final answer
    x = 12,880.91

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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.