Home / 13,030.26-17,981.64-7,364.90

Finding the Fourth Proportional to 13,030.26, 17,981.64 and 7,364.90

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Solution

The fourth proportional to 13,030.26, 17,981.64 and 7,364.90 is: 10,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.26 : 17,981.64 = 7,364.90 : x
  2. Step 2: Convert to fraction form
    13,030.26/17,981.64 = 7,364.90/x
  3. Step 3: Cross multiply
    13,030.26x = 17,981.64 × 7,364.90
  4. Step 4: Simplify right side
    13,030.26x = 132,432,980.44
  5. Step 5: Solve for x
    x = 132,432,980.44/13,030.26
  6. Step 6: Final answer
    x = 10,163.49

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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.