Home / 14,272.45-19,695.58-7,899.30

Finding the Fourth Proportional to 14,272.45, 19,695.58 and 7,899.30

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Solution

The fourth proportional to 14,272.45, 19,695.58 and 7,899.30 is: 10,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.45 : 19,695.58 = 7,899.30 : x
  2. Step 2: Convert to fraction form
    14,272.45/19,695.58 = 7,899.30/x
  3. Step 3: Cross multiply
    14,272.45x = 19,695.58 × 7,899.30
  4. Step 4: Simplify right side
    14,272.45x = 155,581,349.20
  5. Step 5: Solve for x
    x = 155,581,349.20/14,272.45
  6. Step 6: Final answer
    x = 10,900.81

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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.