Home / 12,948.79-19,423.62-3,588.90

Finding the Fourth Proportional to 12,948.79, 19,423.62 and 3,588.90

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Solution

The fourth proportional to 12,948.79, 19,423.62 and 3,588.90 is: 5,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.79 : 19,423.62 = 3,588.90 : x
  2. Step 2: Convert to fraction form
    12,948.79/19,423.62 = 3,588.90/x
  3. Step 3: Cross multiply
    12,948.79x = 19,423.62 × 3,588.90
  4. Step 4: Simplify right side
    12,948.79x = 69,709,429.82
  5. Step 5: Solve for x
    x = 69,709,429.82/12,948.79
  6. Step 6: Final answer
    x = 5,383.47

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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.