Home / 19,389.88-26,749.74-12,673

Finding the Fourth Proportional to 19,389.88, 26,749.74 and 12,673

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Solution

The fourth proportional to 19,389.88, 26,749.74 and 12,673 is: 17,483.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.88 : 26,749.74 = 12,673 : x
  2. Step 2: Convert to fraction form
    19,389.88/26,749.74 = 12,673/x
  3. Step 3: Cross multiply
    19,389.88x = 26,749.74 × 12,673
  4. Step 4: Simplify right side
    19,389.88x = 338,999,455.02
  5. Step 5: Solve for x
    x = 338,999,455.02/19,389.88
  6. Step 6: Final answer
    x = 17,483.32

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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.