Home / 15,455.32-23,165.16-7,117.92

Finding the Fourth Proportional to 15,455.32, 23,165.16 and 7,117.92

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Solution

The fourth proportional to 15,455.32, 23,165.16 and 7,117.92 is: 10,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.32 : 23,165.16 = 7,117.92 : x
  2. Step 2: Convert to fraction form
    15,455.32/23,165.16 = 7,117.92/x
  3. Step 3: Cross multiply
    15,455.32x = 23,165.16 × 7,117.92
  4. Step 4: Simplify right side
    15,455.32x = 164,887,755.67
  5. Step 5: Solve for x
    x = 164,887,755.67/15,455.32
  6. Step 6: Final answer
    x = 10,668.67

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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.