Home / 13,271.45-18,314.90-7,303.26

Finding the Fourth Proportional to 13,271.45, 18,314.90 and 7,303.26

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Solution

The fourth proportional to 13,271.45, 18,314.90 and 7,303.26 is: 10,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.45 : 18,314.90 = 7,303.26 : x
  2. Step 2: Convert to fraction form
    13,271.45/18,314.90 = 7,303.26/x
  3. Step 3: Cross multiply
    13,271.45x = 18,314.90 × 7,303.26
  4. Step 4: Simplify right side
    13,271.45x = 133,758,440.06
  5. Step 5: Solve for x
    x = 133,758,440.06/13,271.45
  6. Step 6: Final answer
    x = 10,078.66

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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.