Home / 12,325.85-17,011.43-7,021.16

Finding the Fourth Proportional to 12,325.85, 17,011.43 and 7,021.16

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Solution

The fourth proportional to 12,325.85, 17,011.43 and 7,021.16 is: 9,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.85 : 17,011.43 = 7,021.16 : x
  2. Step 2: Convert to fraction form
    12,325.85/17,011.43 = 7,021.16/x
  3. Step 3: Cross multiply
    12,325.85x = 17,011.43 × 7,021.16
  4. Step 4: Simplify right side
    12,325.85x = 119,439,851.70
  5. Step 5: Solve for x
    x = 119,439,851.70/12,325.85
  6. Step 6: Final answer
    x = 9,690.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.