Home / 15,816.38-21,826.60-9,530.06

Finding the Fourth Proportional to 15,816.38, 21,826.60 and 9,530.06

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Solution

The fourth proportional to 15,816.38, 21,826.60 and 9,530.06 is: 13,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.38 : 21,826.60 = 9,530.06 : x
  2. Step 2: Convert to fraction form
    15,816.38/21,826.60 = 9,530.06/x
  3. Step 3: Cross multiply
    15,816.38x = 21,826.60 × 9,530.06
  4. Step 4: Simplify right side
    15,816.38x = 208,008,674.64
  5. Step 5: Solve for x
    x = 208,008,674.64/15,816.38
  6. Step 6: Final answer
    x = 13,151.48

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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.