Home / 10,528.56-15,759.96-7,758.36

Finding the Fourth Proportional to 10,528.56, 15,759.96 and 7,758.36

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Solution

The fourth proportional to 10,528.56, 15,759.96 and 7,758.36 is: 11,613.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.56 : 15,759.96 = 7,758.36 : x
  2. Step 2: Convert to fraction form
    10,528.56/15,759.96 = 7,758.36/x
  3. Step 3: Cross multiply
    10,528.56x = 15,759.96 × 7,758.36
  4. Step 4: Simplify right side
    10,528.56x = 122,271,443.27
  5. Step 5: Solve for x
    x = 122,271,443.27/10,528.56
  6. Step 6: Final answer
    x = 11,613.31

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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.