Home / 14,999.36-20,704.64-9,031.28

Finding the Fourth Proportional to 14,999.36, 20,704.64 and 9,031.28

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Solution

The fourth proportional to 14,999.36, 20,704.64 and 9,031.28 is: 12,466.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.36 : 20,704.64 = 9,031.28 : x
  2. Step 2: Convert to fraction form
    14,999.36/20,704.64 = 9,031.28/x
  3. Step 3: Cross multiply
    14,999.36x = 20,704.64 × 9,031.28
  4. Step 4: Simplify right side
    14,999.36x = 186,989,401.14
  5. Step 5: Solve for x
    x = 186,989,401.14/14,999.36
  6. Step 6: Final answer
    x = 12,466.49

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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.