Home / 14,071.42-19,418.32-7,783.80

Finding the Fourth Proportional to 14,071.42, 19,418.32 and 7,783.80

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Solution

The fourth proportional to 14,071.42, 19,418.32 and 7,783.80 is: 10,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.42 : 19,418.32 = 7,783.80 : x
  2. Step 2: Convert to fraction form
    14,071.42/19,418.32 = 7,783.80/x
  3. Step 3: Cross multiply
    14,071.42x = 19,418.32 × 7,783.80
  4. Step 4: Simplify right side
    14,071.42x = 151,148,319.22
  5. Step 5: Solve for x
    x = 151,148,319.22/14,071.42
  6. Step 6: Final answer
    x = 10,741.51

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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.