Home / 19,122.78-26,389.28-10,509.07

Finding the Fourth Proportional to 19,122.78, 26,389.28 and 10,509.07

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Solution

The fourth proportional to 19,122.78, 26,389.28 and 10,509.07 is: 14,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.78 : 26,389.28 = 10,509.07 : x
  2. Step 2: Convert to fraction form
    19,122.78/26,389.28 = 10,509.07/x
  3. Step 3: Cross multiply
    19,122.78x = 26,389.28 × 10,509.07
  4. Step 4: Simplify right side
    19,122.78x = 277,326,738.22
  5. Step 5: Solve for x
    x = 277,326,738.22/19,122.78
  6. Step 6: Final answer
    x = 14,502.43

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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.