Home / 15,866.03-21,897.41-9,150.32

Finding the Fourth Proportional to 15,866.03, 21,897.41 and 9,150.32

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Solution

The fourth proportional to 15,866.03, 21,897.41 and 9,150.32 is: 12,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.03 : 21,897.41 = 9,150.32 : x
  2. Step 2: Convert to fraction form
    15,866.03/21,897.41 = 9,150.32/x
  3. Step 3: Cross multiply
    15,866.03x = 21,897.41 × 9,150.32
  4. Step 4: Simplify right side
    15,866.03x = 200,368,271.70
  5. Step 5: Solve for x
    x = 200,368,271.70/15,866.03
  6. Step 6: Final answer
    x = 12,628.76

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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.