Home / 15,639.48-23,458.01-6,279.12

Finding the Fourth Proportional to 15,639.48, 23,458.01 and 6,279.12

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Solution

The fourth proportional to 15,639.48, 23,458.01 and 6,279.12 is: 9,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.48 : 23,458.01 = 6,279.12 : x
  2. Step 2: Convert to fraction form
    15,639.48/23,458.01 = 6,279.12/x
  3. Step 3: Cross multiply
    15,639.48x = 23,458.01 × 6,279.12
  4. Step 4: Simplify right side
    15,639.48x = 147,295,628.36
  5. Step 5: Solve for x
    x = 147,295,628.36/15,639.48
  6. Step 6: Final answer
    x = 9,418.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.