Home / 19,186.80-26,475.36-10,686.78

Finding the Fourth Proportional to 19,186.80, 26,475.36 and 10,686.78

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Solution

The fourth proportional to 19,186.80, 26,475.36 and 10,686.78 is: 14,746.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.80 : 26,475.36 = 10,686.78 : x
  2. Step 2: Convert to fraction form
    19,186.80/26,475.36 = 10,686.78/x
  3. Step 3: Cross multiply
    19,186.80x = 26,475.36 × 10,686.78
  4. Step 4: Simplify right side
    19,186.80x = 282,936,347.74
  5. Step 5: Solve for x
    x = 282,936,347.74/19,186.80
  6. Step 6: Final answer
    x = 14,746.41

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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.