Home / 15,657.75-21,605.04-10,349.73

Finding the Fourth Proportional to 15,657.75, 21,605.04 and 10,349.73

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Solution

The fourth proportional to 15,657.75, 21,605.04 and 10,349.73 is: 14,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.75 : 21,605.04 = 10,349.73 : x
  2. Step 2: Convert to fraction form
    15,657.75/21,605.04 = 10,349.73/x
  3. Step 3: Cross multiply
    15,657.75x = 21,605.04 × 10,349.73
  4. Step 4: Simplify right side
    15,657.75x = 223,606,330.64
  5. Step 5: Solve for x
    x = 223,606,330.64/15,657.75
  6. Step 6: Final answer
    x = 14,280.87

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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.