Home / 12,330.23-17,011.56-7,021.30

Finding the Fourth Proportional to 12,330.23, 17,011.56 and 7,021.30

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Solution

The fourth proportional to 12,330.23, 17,011.56 and 7,021.30 is: 9,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.23 : 17,011.56 = 7,021.30 : x
  2. Step 2: Convert to fraction form
    12,330.23/17,011.56 = 7,021.30/x
  3. Step 3: Cross multiply
    12,330.23x = 17,011.56 × 7,021.30
  4. Step 4: Simplify right side
    12,330.23x = 119,443,266.23
  5. Step 5: Solve for x
    x = 119,443,266.23/12,330.23
  6. Step 6: Final answer
    x = 9,687.03

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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.