Home / 14,072.08-19,418.40-7,784.32

Finding the Fourth Proportional to 14,072.08, 19,418.40 and 7,784.32

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Solution

The fourth proportional to 14,072.08, 19,418.40 and 7,784.32 is: 10,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.08 : 19,418.40 = 7,784.32 : x
  2. Step 2: Convert to fraction form
    14,072.08/19,418.40 = 7,784.32/x
  3. Step 3: Cross multiply
    14,072.08x = 19,418.40 × 7,784.32
  4. Step 4: Simplify right side
    14,072.08x = 151,159,039.49
  5. Step 5: Solve for x
    x = 151,159,039.49/14,072.08
  6. Step 6: Final answer
    x = 10,741.77

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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.