Home / 14,361.12-21,538.08-5,127.20

Finding the Fourth Proportional to 14,361.12, 21,538.08 and 5,127.20

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Solution

The fourth proportional to 14,361.12, 21,538.08 and 5,127.20 is: 7,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361.12 : 21,538.08 = 5,127.20 : x
  2. Step 2: Convert to fraction form
    14,361.12/21,538.08 = 5,127.20/x
  3. Step 3: Cross multiply
    14,361.12x = 21,538.08 × 5,127.20
  4. Step 4: Simplify right side
    14,361.12x = 110,430,043.78
  5. Step 5: Solve for x
    x = 110,430,043.78/14,361.12
  6. Step 6: Final answer
    x = 7,689.51

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1.5x scale

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.