Home / 19,153.87-26,430.44-11,982.40

Finding the Fourth Proportional to 19,153.87, 26,430.44 and 11,982.40

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Solution

The fourth proportional to 19,153.87, 26,430.44 and 11,982.40 is: 16,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153.87 : 26,430.44 = 11,982.40 : x
  2. Step 2: Convert to fraction form
    19,153.87/26,430.44 = 11,982.40/x
  3. Step 3: Cross multiply
    19,153.87x = 26,430.44 × 11,982.40
  4. Step 4: Simplify right side
    19,153.87x = 316,700,104.26
  5. Step 5: Solve for x
    x = 316,700,104.26/19,153.87
  6. Step 6: Final answer
    x = 16,534.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.