Home / 15,101.24-20,831.18-9,130.73

Finding the Fourth Proportional to 15,101.24, 20,831.18 and 9,130.73

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Solution

The fourth proportional to 15,101.24, 20,831.18 and 9,130.73 is: 12,595.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,101.24 : 20,831.18 = 9,130.73 : x
  2. Step 2: Convert to fraction form
    15,101.24/20,831.18 = 9,130.73/x
  3. Step 3: Cross multiply
    15,101.24x = 20,831.18 × 9,130.73
  4. Step 4: Simplify right side
    15,101.24x = 190,203,730.35
  5. Step 5: Solve for x
    x = 190,203,730.35/15,101.24
  6. Step 6: Final answer
    x = 12,595.24

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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.