Home / 13,270.95-18,313.07-7,605.63

Finding the Fourth Proportional to 13,270.95, 18,313.07 and 7,605.63

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Solution

The fourth proportional to 13,270.95, 18,313.07 and 7,605.63 is: 10,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.95 : 18,313.07 = 7,605.63 : x
  2. Step 2: Convert to fraction form
    13,270.95/18,313.07 = 7,605.63/x
  3. Step 3: Cross multiply
    13,270.95x = 18,313.07 × 7,605.63
  4. Step 4: Simplify right side
    13,270.95x = 139,282,396.56
  5. Step 5: Solve for x
    x = 139,282,396.56/13,270.95
  6. Step 6: Final answer
    x = 10,495.28

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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.