Home / 10,199.32-15,289.86-4,931.38

Finding the Fourth Proportional to 10,199.32, 15,289.86 and 4,931.38

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Solution

The fourth proportional to 10,199.32, 15,289.86 and 4,931.38 is: 7,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199.32 : 15,289.86 = 4,931.38 : x
  2. Step 2: Convert to fraction form
    10,199.32/15,289.86 = 4,931.38/x
  3. Step 3: Cross multiply
    10,199.32x = 15,289.86 × 4,931.38
  4. Step 4: Simplify right side
    10,199.32x = 75,400,147.41
  5. Step 5: Solve for x
    x = 75,400,147.41/10,199.32
  6. Step 6: Final answer
    x = 7,392.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.