Home / 15,801.64-21,804.78-10,126.36

Finding the Fourth Proportional to 15,801.64, 21,804.78 and 10,126.36

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Solution

The fourth proportional to 15,801.64, 21,804.78 and 10,126.36 is: 13,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.64 : 21,804.78 = 10,126.36 : x
  2. Step 2: Convert to fraction form
    15,801.64/21,804.78 = 10,126.36/x
  3. Step 3: Cross multiply
    15,801.64x = 21,804.78 × 10,126.36
  4. Step 4: Simplify right side
    15,801.64x = 220,803,052.00
  5. Step 5: Solve for x
    x = 220,803,052.00/15,801.64
  6. Step 6: Final answer
    x = 13,973.43

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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.