Home / 12,898.03-19,334.49-6,665.08

Finding the Fourth Proportional to 12,898.03, 19,334.49 and 6,665.08

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Solution

The fourth proportional to 12,898.03, 19,334.49 and 6,665.08 is: 9,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.03 : 19,334.49 = 6,665.08 : x
  2. Step 2: Convert to fraction form
    12,898.03/19,334.49 = 6,665.08/x
  3. Step 3: Cross multiply
    12,898.03x = 19,334.49 × 6,665.08
  4. Step 4: Simplify right side
    12,898.03x = 128,865,922.61
  5. Step 5: Solve for x
    x = 128,865,922.61/12,898.03
  6. Step 6: Final answer
    x = 9,991.13

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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.