Home / 12,954.90-19,417.64-5,555.56

Finding the Fourth Proportional to 12,954.90, 19,417.64 and 5,555.56

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Solution

The fourth proportional to 12,954.90, 19,417.64 and 5,555.56 is: 8,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.90 : 19,417.64 = 5,555.56 : x
  2. Step 2: Convert to fraction form
    12,954.90/19,417.64 = 5,555.56/x
  3. Step 3: Cross multiply
    12,954.90x = 19,417.64 × 5,555.56
  4. Step 4: Simplify right side
    12,954.90x = 107,875,864.08
  5. Step 5: Solve for x
    x = 107,875,864.08/12,954.90
  6. Step 6: Final answer
    x = 8,327.03

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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.