Home / 10,653.12-15,970.32-4,409.16

Finding the Fourth Proportional to 10,653.12, 15,970.32 and 4,409.16

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Solution

The fourth proportional to 10,653.12, 15,970.32 and 4,409.16 is: 6,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.12 : 15,970.32 = 4,409.16 : x
  2. Step 2: Convert to fraction form
    10,653.12/15,970.32 = 4,409.16/x
  3. Step 3: Cross multiply
    10,653.12x = 15,970.32 × 4,409.16
  4. Step 4: Simplify right side
    10,653.12x = 70,415,696.13
  5. Step 5: Solve for x
    x = 70,415,696.13/10,653.12
  6. Step 6: Final answer
    x = 6,609.87

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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.