Home / 18,933.67-26,128.06-10,977.31

Finding the Fourth Proportional to 18,933.67, 26,128.06 and 10,977.31

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Solution

The fourth proportional to 18,933.67, 26,128.06 and 10,977.31 is: 15,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.67 : 26,128.06 = 10,977.31 : x
  2. Step 2: Convert to fraction form
    18,933.67/26,128.06 = 10,977.31/x
  3. Step 3: Cross multiply
    18,933.67x = 26,128.06 × 10,977.31
  4. Step 4: Simplify right side
    18,933.67x = 286,815,814.32
  5. Step 5: Solve for x
    x = 286,815,814.32/18,933.67
  6. Step 6: Final answer
    x = 15,148.45

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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.