Home / 13,235.10-19,846.36-7,690.16

Finding the Fourth Proportional to 13,235.10, 19,846.36 and 7,690.16

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Solution

The fourth proportional to 13,235.10, 19,846.36 and 7,690.16 is: 11,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.10 : 19,846.36 = 7,690.16 : x
  2. Step 2: Convert to fraction form
    13,235.10/19,846.36 = 7,690.16/x
  3. Step 3: Cross multiply
    13,235.10x = 19,846.36 × 7,690.16
  4. Step 4: Simplify right side
    13,235.10x = 152,621,683.82
  5. Step 5: Solve for x
    x = 152,621,683.82/13,235.10
  6. Step 6: Final answer
    x = 11,531.59

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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.