Home / 13,880.58-19,152.93-7,912.35

Finding the Fourth Proportional to 13,880.58, 19,152.93 and 7,912.35

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Solution

The fourth proportional to 13,880.58, 19,152.93 and 7,912.35 is: 10,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.58 : 19,152.93 = 7,912.35 : x
  2. Step 2: Convert to fraction form
    13,880.58/19,152.93 = 7,912.35/x
  3. Step 3: Cross multiply
    13,880.58x = 19,152.93 × 7,912.35
  4. Step 4: Simplify right side
    13,880.58x = 151,544,685.69
  5. Step 5: Solve for x
    x = 151,544,685.69/13,880.58
  6. Step 6: Final answer
    x = 10,917.75

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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.