Home / 9,161.32-12,642.64-5,182.36

Finding the Fourth Proportional to 9,161.32, 12,642.64 and 5,182.36

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Solution

The fourth proportional to 9,161.32, 12,642.64 and 5,182.36 is: 7,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.32 : 12,642.64 = 5,182.36 : x
  2. Step 2: Convert to fraction form
    9,161.32/12,642.64 = 5,182.36/x
  3. Step 3: Cross multiply
    9,161.32x = 12,642.64 × 5,182.36
  4. Step 4: Simplify right side
    9,161.32x = 65,518,711.83
  5. Step 5: Solve for x
    x = 65,518,711.83/9,161.32
  6. Step 6: Final answer
    x = 7,151.67

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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.