Home / 19,123.78-26,390.65-10,510.07

Finding the Fourth Proportional to 19,123.78, 26,390.65 and 10,510.07

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Solution

The fourth proportional to 19,123.78, 26,390.65 and 10,510.07 is: 14,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.78 : 26,390.65 = 10,510.07 : x
  2. Step 2: Convert to fraction form
    19,123.78/26,390.65 = 10,510.07/x
  3. Step 3: Cross multiply
    19,123.78x = 26,390.65 × 10,510.07
  4. Step 4: Simplify right side
    19,123.78x = 277,367,578.85
  5. Step 5: Solve for x
    x = 277,367,578.85/19,123.78
  6. Step 6: Final answer
    x = 14,503.81

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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.