Home / 15,014.36-20,718.13-8,298.30

Finding the Fourth Proportional to 15,014.36, 20,718.13 and 8,298.30

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Solution

The fourth proportional to 15,014.36, 20,718.13 and 8,298.30 is: 11,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.36 : 20,718.13 = 8,298.30 : x
  2. Step 2: Convert to fraction form
    15,014.36/20,718.13 = 8,298.30/x
  3. Step 3: Cross multiply
    15,014.36x = 20,718.13 × 8,298.30
  4. Step 4: Simplify right side
    15,014.36x = 171,925,214.15
  5. Step 5: Solve for x
    x = 171,925,214.15/15,014.36
  6. Step 6: Final answer
    x = 11,450.72

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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.