Home / 12,898.08-19,346.40-5,107.68

Finding the Fourth Proportional to 12,898.08, 19,346.40 and 5,107.68

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Solution

The fourth proportional to 12,898.08, 19,346.40 and 5,107.68 is: 7,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.08 : 19,346.40 = 5,107.68 : x
  2. Step 2: Convert to fraction form
    12,898.08/19,346.40 = 5,107.68/x
  3. Step 3: Cross multiply
    12,898.08x = 19,346.40 × 5,107.68
  4. Step 4: Simplify right side
    12,898.08x = 98,815,220.35
  5. Step 5: Solve for x
    x = 98,815,220.35/12,898.08
  6. Step 6: Final answer
    x = 7,661.23

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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.