Home / 13,317.65-18,372.75-9,341.36

Finding the Fourth Proportional to 13,317.65, 18,372.75 and 9,341.36

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Solution

The fourth proportional to 13,317.65, 18,372.75 and 9,341.36 is: 12,887.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.65 : 18,372.75 = 9,341.36 : x
  2. Step 2: Convert to fraction form
    13,317.65/18,372.75 = 9,341.36/x
  3. Step 3: Cross multiply
    13,317.65x = 18,372.75 × 9,341.36
  4. Step 4: Simplify right side
    13,317.65x = 171,626,471.94
  5. Step 5: Solve for x
    x = 171,626,471.94/13,317.65
  6. Step 6: Final answer
    x = 12,887.14

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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.