Home / 19,121.40-26,386.20-10,622.70

Finding the Fourth Proportional to 19,121.40, 26,386.20 and 10,622.70

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Solution

The fourth proportional to 19,121.40, 26,386.20 and 10,622.70 is: 14,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.40 : 26,386.20 = 10,622.70 : x
  2. Step 2: Convert to fraction form
    19,121.40/26,386.20 = 10,622.70/x
  3. Step 3: Cross multiply
    19,121.40x = 26,386.20 × 10,622.70
  4. Step 4: Simplify right side
    19,121.40x = 280,292,686.74
  5. Step 5: Solve for x
    x = 280,292,686.74/19,121.40
  6. Step 6: Final answer
    x = 14,658.59

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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.