Home / 19,111.19-26,371.98-11,152.40

Finding the Fourth Proportional to 19,111.19, 26,371.98 and 11,152.40

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Solution

The fourth proportional to 19,111.19, 26,371.98 and 11,152.40 is: 15,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.19 : 26,371.98 = 11,152.40 : x
  2. Step 2: Convert to fraction form
    19,111.19/26,371.98 = 11,152.40/x
  3. Step 3: Cross multiply
    19,111.19x = 26,371.98 × 11,152.40
  4. Step 4: Simplify right side
    19,111.19x = 294,110,737.89
  5. Step 5: Solve for x
    x = 294,110,737.89/19,111.19
  6. Step 6: Final answer
    x = 15,389.46

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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.