Home / 14,277.60-21,416.40-7,716.60

Finding the Fourth Proportional to 14,277.60, 21,416.40 and 7,716.60

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Solution

The fourth proportional to 14,277.60, 21,416.40 and 7,716.60 is: 11,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,277.60 : 21,416.40 = 7,716.60 : x
  2. Step 2: Convert to fraction form
    14,277.60/21,416.40 = 7,716.60/x
  3. Step 3: Cross multiply
    14,277.60x = 21,416.40 × 7,716.60
  4. Step 4: Simplify right side
    14,277.60x = 165,261,792.24
  5. Step 5: Solve for x
    x = 165,261,792.24/14,277.60
  6. Step 6: Final answer
    x = 11,574.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.