Home / 12,438.94-18,666.10-5,043.46

Finding the Fourth Proportional to 12,438.94, 18,666.10 and 5,043.46

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Solution

The fourth proportional to 12,438.94, 18,666.10 and 5,043.46 is: 7,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.94 : 18,666.10 = 5,043.46 : x
  2. Step 2: Convert to fraction form
    12,438.94/18,666.10 = 5,043.46/x
  3. Step 3: Cross multiply
    12,438.94x = 18,666.10 × 5,043.46
  4. Step 4: Simplify right side
    12,438.94x = 94,141,728.71
  5. Step 5: Solve for x
    x = 94,141,728.71/12,438.94
  6. Step 6: Final answer
    x = 7,568.31

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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.