Home / 10,653.80-15,999.90-7,735.40

Finding the Fourth Proportional to 10,653.80, 15,999.90 and 7,735.40

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Solution

The fourth proportional to 10,653.80, 15,999.90 and 7,735.40 is: 11,617.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.80 : 15,999.90 = 7,735.40 : x
  2. Step 2: Convert to fraction form
    10,653.80/15,999.90 = 7,735.40/x
  3. Step 3: Cross multiply
    10,653.80x = 15,999.90 × 7,735.40
  4. Step 4: Simplify right side
    10,653.80x = 123,765,626.46
  5. Step 5: Solve for x
    x = 123,765,626.46/10,653.80
  6. Step 6: Final answer
    x = 11,617.04

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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.