Home / 13,700.25-20,538.05-4,929

Finding the Fourth Proportional to 13,700.25, 20,538.05 and 4,929

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Solution

The fourth proportional to 13,700.25, 20,538.05 and 4,929 is: 7,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.25 : 20,538.05 = 4,929 : x
  2. Step 2: Convert to fraction form
    13,700.25/20,538.05 = 4,929/x
  3. Step 3: Cross multiply
    13,700.25x = 20,538.05 × 4,929
  4. Step 4: Simplify right side
    13,700.25x = 101,232,023.81
  5. Step 5: Solve for x
    x = 101,232,023.81/13,700.25
  6. Step 6: Final answer
    x = 7,389.06

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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.