Home / 13,823.82-19,070.81-9,345.95

Finding the Fourth Proportional to 13,823.82, 19,070.81 and 9,345.95

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Solution

The fourth proportional to 13,823.82, 19,070.81 and 9,345.95 is: 12,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.82 : 19,070.81 = 9,345.95 : x
  2. Step 2: Convert to fraction form
    13,823.82/19,070.81 = 9,345.95/x
  3. Step 3: Cross multiply
    13,823.82x = 19,070.81 × 9,345.95
  4. Step 4: Simplify right side
    13,823.82x = 178,234,694.64
  5. Step 5: Solve for x
    x = 178,234,694.64/13,823.82
  6. Step 6: Final answer
    x = 12,893.30

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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.