Home / 13,157.28-19,721.88-6,570.36

Finding the Fourth Proportional to 13,157.28, 19,721.88 and 6,570.36

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Solution

The fourth proportional to 13,157.28, 19,721.88 and 6,570.36 is: 9,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.28 : 19,721.88 = 6,570.36 : x
  2. Step 2: Convert to fraction form
    13,157.28/19,721.88 = 6,570.36/x
  3. Step 3: Cross multiply
    13,157.28x = 19,721.88 × 6,570.36
  4. Step 4: Simplify right side
    13,157.28x = 129,579,851.48
  5. Step 5: Solve for x
    x = 129,579,851.48/13,157.28
  6. Step 6: Final answer
    x = 9,848.53

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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.