Home / 19,140.79-26,411.93-11,177.23

Finding the Fourth Proportional to 19,140.79, 26,411.93 and 11,177.23

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Solution

The fourth proportional to 19,140.79, 26,411.93 and 11,177.23 is: 15,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.79 : 26,411.93 = 11,177.23 : x
  2. Step 2: Convert to fraction form
    19,140.79/26,411.93 = 11,177.23/x
  3. Step 3: Cross multiply
    19,140.79x = 26,411.93 × 11,177.23
  4. Step 4: Simplify right side
    19,140.79x = 295,212,112.24
  5. Step 5: Solve for x
    x = 295,212,112.24/19,140.79
  6. Step 6: Final answer
    x = 15,423.20

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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.