Home / 13,977.83-19,285.58-9,724.12

Finding the Fourth Proportional to 13,977.83, 19,285.58 and 9,724.12

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Solution

The fourth proportional to 13,977.83, 19,285.58 and 9,724.12 is: 13,416.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.83 : 19,285.58 = 9,724.12 : x
  2. Step 2: Convert to fraction form
    13,977.83/19,285.58 = 9,724.12/x
  3. Step 3: Cross multiply
    13,977.83x = 19,285.58 × 9,724.12
  4. Step 4: Simplify right side
    13,977.83x = 187,535,270.29
  5. Step 5: Solve for x
    x = 187,535,270.29/13,977.83
  6. Step 6: Final answer
    x = 13,416.62

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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.