Home / 18,355.04-25,317.06-11,285.36

Finding the Fourth Proportional to 18,355.04, 25,317.06 and 11,285.36

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Solution

The fourth proportional to 18,355.04, 25,317.06 and 11,285.36 is: 15,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.04 : 25,317.06 = 11,285.36 : x
  2. Step 2: Convert to fraction form
    18,355.04/25,317.06 = 11,285.36/x
  3. Step 3: Cross multiply
    18,355.04x = 25,317.06 × 11,285.36
  4. Step 4: Simplify right side
    18,355.04x = 285,712,136.24
  5. Step 5: Solve for x
    x = 285,712,136.24/18,355.04
  6. Step 6: Final answer
    x = 15,565.87

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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.