Home / 15,095.02-20,831.18-8,380.67

Finding the Fourth Proportional to 15,095.02, 20,831.18 and 8,380.67

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Solution

The fourth proportional to 15,095.02, 20,831.18 and 8,380.67 is: 11,565.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095.02 : 20,831.18 = 8,380.67 : x
  2. Step 2: Convert to fraction form
    15,095.02/20,831.18 = 8,380.67/x
  3. Step 3: Cross multiply
    15,095.02x = 20,831.18 × 8,380.67
  4. Step 4: Simplify right side
    15,095.02x = 174,579,099.23
  5. Step 5: Solve for x
    x = 174,579,099.23/15,095.02
  6. Step 6: Final answer
    x = 11,565.34

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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.