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Finding the Fourth Proportional to 9,018.95, 12,446.42 and 5,040.07

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Solution

The fourth proportional to 9,018.95, 12,446.42 and 5,040.07 is: 6,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.95 : 12,446.42 = 5,040.07 : x
  2. Step 2: Convert to fraction form
    9,018.95/12,446.42 = 5,040.07/x
  3. Step 3: Cross multiply
    9,018.95x = 12,446.42 × 5,040.07
  4. Step 4: Simplify right side
    9,018.95x = 62,730,855.92
  5. Step 5: Solve for x
    x = 62,730,855.92/9,018.95
  6. Step 6: Final answer
    x = 6,955.45

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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.