Home / 13,440.24-18,544.68-7,848.72

Finding the Fourth Proportional to 13,440.24, 18,544.68 and 7,848.72

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Solution

The fourth proportional to 13,440.24, 18,544.68 and 7,848.72 is: 10,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.24 : 18,544.68 = 7,848.72 : x
  2. Step 2: Convert to fraction form
    13,440.24/18,544.68 = 7,848.72/x
  3. Step 3: Cross multiply
    13,440.24x = 18,544.68 × 7,848.72
  4. Step 4: Simplify right side
    13,440.24x = 145,552,000.81
  5. Step 5: Solve for x
    x = 145,552,000.81/13,440.24
  6. Step 6: Final answer
    x = 10,829.57

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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.