Home / 15,362.87-21,211.20-11,771.46

Finding the Fourth Proportional to 15,362.87, 21,211.20 and 11,771.46

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Solution

The fourth proportional to 15,362.87, 21,211.20 and 11,771.46 is: 16,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.87 : 21,211.20 = 11,771.46 : x
  2. Step 2: Convert to fraction form
    15,362.87/21,211.20 = 11,771.46/x
  3. Step 3: Cross multiply
    15,362.87x = 21,211.20 × 11,771.46
  4. Step 4: Simplify right side
    15,362.87x = 249,686,792.35
  5. Step 5: Solve for x
    x = 249,686,792.35/15,362.87
  6. Step 6: Final answer
    x = 16,252.62

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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.