Home / 13,990.55-19,307.03-8,023.68

Finding the Fourth Proportional to 13,990.55, 19,307.03 and 8,023.68

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Solution

The fourth proportional to 13,990.55, 19,307.03 and 8,023.68 is: 11,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.55 : 19,307.03 = 8,023.68 : x
  2. Step 2: Convert to fraction form
    13,990.55/19,307.03 = 8,023.68/x
  3. Step 3: Cross multiply
    13,990.55x = 19,307.03 × 8,023.68
  4. Step 4: Simplify right side
    13,990.55x = 154,913,390.35
  5. Step 5: Solve for x
    x = 154,913,390.35/13,990.55
  6. Step 6: Final answer
    x = 11,072.72

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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.