Home / 18,411.24-27,599.70-7,315.80

Finding the Fourth Proportional to 18,411.24, 27,599.70 and 7,315.80

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Solution

The fourth proportional to 18,411.24, 27,599.70 and 7,315.80 is: 10,966.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.24 : 27,599.70 = 7,315.80 : x
  2. Step 2: Convert to fraction form
    18,411.24/27,599.70 = 7,315.80/x
  3. Step 3: Cross multiply
    18,411.24x = 27,599.70 × 7,315.80
  4. Step 4: Simplify right side
    18,411.24x = 201,913,885.26
  5. Step 5: Solve for x
    x = 201,913,885.26/18,411.24
  6. Step 6: Final answer
    x = 10,966.88

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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.