Home / 13,946.58-19,243.98-7,977.69

Finding the Fourth Proportional to 13,946.58, 19,243.98 and 7,977.69

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Solution

The fourth proportional to 13,946.58, 19,243.98 and 7,977.69 is: 11,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.58 : 19,243.98 = 7,977.69 : x
  2. Step 2: Convert to fraction form
    13,946.58/19,243.98 = 7,977.69/x
  3. Step 3: Cross multiply
    13,946.58x = 19,243.98 × 7,977.69
  4. Step 4: Simplify right side
    13,946.58x = 153,522,506.81
  5. Step 5: Solve for x
    x = 153,522,506.81/13,946.58
  6. Step 6: Final answer
    x = 11,007.90

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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.