Home / 13,317.57-18,402.54-11,403.06

Finding the Fourth Proportional to 13,317.57, 18,402.54 and 11,403.06

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Solution

The fourth proportional to 13,317.57, 18,402.54 and 11,403.06 is: 15,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.57 : 18,402.54 = 11,403.06 : x
  2. Step 2: Convert to fraction form
    13,317.57/18,402.54 = 11,403.06/x
  3. Step 3: Cross multiply
    13,317.57x = 18,402.54 × 11,403.06
  4. Step 4: Simplify right side
    13,317.57x = 209,845,267.77
  5. Step 5: Solve for x
    x = 209,845,267.77/13,317.57
  6. Step 6: Final answer
    x = 15,757.02

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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.