Home / 13,889.94-19,168.32-7,602.30

Finding the Fourth Proportional to 13,889.94, 19,168.32 and 7,602.30

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Solution

The fourth proportional to 13,889.94, 19,168.32 and 7,602.30 is: 10,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.94 : 19,168.32 = 7,602.30 : x
  2. Step 2: Convert to fraction form
    13,889.94/19,168.32 = 7,602.30/x
  3. Step 3: Cross multiply
    13,889.94x = 19,168.32 × 7,602.30
  4. Step 4: Simplify right side
    13,889.94x = 145,723,319.14
  5. Step 5: Solve for x
    x = 145,723,319.14/13,889.94
  6. Step 6: Final answer
    x = 10,491.28

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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.