Home / 13,980.75-19,292.55-7,607.28

Finding the Fourth Proportional to 13,980.75, 19,292.55 and 7,607.28

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Solution

The fourth proportional to 13,980.75, 19,292.55 and 7,607.28 is: 10,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.75 : 19,292.55 = 7,607.28 : x
  2. Step 2: Convert to fraction form
    13,980.75/19,292.55 = 7,607.28/x
  3. Step 3: Cross multiply
    13,980.75x = 19,292.55 × 7,607.28
  4. Step 4: Simplify right side
    13,980.75x = 146,763,829.76
  5. Step 5: Solve for x
    x = 146,763,829.76/13,980.75
  6. Step 6: Final answer
    x = 10,497.56

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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.