Home / 8,440.47-11,650.64-5,297.67

Finding the Fourth Proportional to 8,440.47, 11,650.64 and 5,297.67

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Solution

The fourth proportional to 8,440.47, 11,650.64 and 5,297.67 is: 7,312.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.47 : 11,650.64 = 5,297.67 : x
  2. Step 2: Convert to fraction form
    8,440.47/11,650.64 = 5,297.67/x
  3. Step 3: Cross multiply
    8,440.47x = 11,650.64 × 5,297.67
  4. Step 4: Simplify right side
    8,440.47x = 61,721,219.52
  5. Step 5: Solve for x
    x = 61,721,219.52/8,440.47
  6. Step 6: Final answer
    x = 7,312.53

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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.