Home / 12,307.05-18,468.79-9,190.58

Finding the Fourth Proportional to 12,307.05, 18,468.79 and 9,190.58

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Solution

The fourth proportional to 12,307.05, 18,468.79 and 9,190.58 is: 13,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.05 : 18,468.79 = 9,190.58 : x
  2. Step 2: Convert to fraction form
    12,307.05/18,468.79 = 9,190.58/x
  3. Step 3: Cross multiply
    12,307.05x = 18,468.79 × 9,190.58
  4. Step 4: Simplify right side
    12,307.05x = 169,738,776.68
  5. Step 5: Solve for x
    x = 169,738,776.68/12,307.05
  6. Step 6: Final answer
    x = 13,792.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.