Home / 9,018.48-12,461.40-6,940.56

Finding the Fourth Proportional to 9,018.48, 12,461.40 and 6,940.56

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Solution

The fourth proportional to 9,018.48, 12,461.40 and 6,940.56 is: 9,590.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.48 : 12,461.40 = 6,940.56 : x
  2. Step 2: Convert to fraction form
    9,018.48/12,461.40 = 6,940.56/x
  3. Step 3: Cross multiply
    9,018.48x = 12,461.40 × 6,940.56
  4. Step 4: Simplify right side
    9,018.48x = 86,489,094.38
  5. Step 5: Solve for x
    x = 86,489,094.38/9,018.48
  6. Step 6: Final answer
    x = 9,590.21

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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.