Home / 13,929.94-19,223.32-7,642.32

Finding the Fourth Proportional to 13,929.94, 19,223.32 and 7,642.32

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Solution

The fourth proportional to 13,929.94, 19,223.32 and 7,642.32 is: 10,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.94 : 19,223.32 = 7,642.32 : x
  2. Step 2: Convert to fraction form
    13,929.94/19,223.32 = 7,642.32/x
  3. Step 3: Cross multiply
    13,929.94x = 19,223.32 × 7,642.32
  4. Step 4: Simplify right side
    13,929.94x = 146,910,762.90
  5. Step 5: Solve for x
    x = 146,910,762.90/13,929.94
  6. Step 6: Final answer
    x = 10,546.40

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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.