Home / 14,078.53-19,428.20-7,705.06

Finding the Fourth Proportional to 14,078.53, 19,428.20 and 7,705.06

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Solution

The fourth proportional to 14,078.53, 19,428.20 and 7,705.06 is: 10,632.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.53 : 19,428.20 = 7,705.06 : x
  2. Step 2: Convert to fraction form
    14,078.53/19,428.20 = 7,705.06/x
  3. Step 3: Cross multiply
    14,078.53x = 19,428.20 × 7,705.06
  4. Step 4: Simplify right side
    14,078.53x = 149,695,349.55
  5. Step 5: Solve for x
    x = 149,695,349.55/14,078.53
  6. Step 6: Final answer
    x = 10,632.89

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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.