Home / 18,581.94-25,643.58-10,515

Finding the Fourth Proportional to 18,581.94, 25,643.58 and 10,515

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Solution

The fourth proportional to 18,581.94, 25,643.58 and 10,515 is: 14,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.94 : 25,643.58 = 10,515 : x
  2. Step 2: Convert to fraction form
    18,581.94/25,643.58 = 10,515/x
  3. Step 3: Cross multiply
    18,581.94x = 25,643.58 × 10,515
  4. Step 4: Simplify right side
    18,581.94x = 269,642,243.70
  5. Step 5: Solve for x
    x = 269,642,243.70/18,581.94
  6. Step 6: Final answer
    x = 14,510.98

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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.