Home / 15,018.24-20,724.12-8,302.94

Finding the Fourth Proportional to 15,018.24, 20,724.12 and 8,302.94

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Solution

The fourth proportional to 15,018.24, 20,724.12 and 8,302.94 is: 11,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.24 : 20,724.12 = 8,302.94 : x
  2. Step 2: Convert to fraction form
    15,018.24/20,724.12 = 8,302.94/x
  3. Step 3: Cross multiply
    15,018.24x = 20,724.12 × 8,302.94
  4. Step 4: Simplify right side
    15,018.24x = 172,071,099.01
  5. Step 5: Solve for x
    x = 172,071,099.01/15,018.24
  6. Step 6: Final answer
    x = 11,457.47

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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.