Home / 13,288.77-18,337.82-7,319.32

Finding the Fourth Proportional to 13,288.77, 18,337.82 and 7,319.32

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Solution

The fourth proportional to 13,288.77, 18,337.82 and 7,319.32 is: 10,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.77 : 18,337.82 = 7,319.32 : x
  2. Step 2: Convert to fraction form
    13,288.77/18,337.82 = 7,319.32/x
  3. Step 3: Cross multiply
    13,288.77x = 18,337.82 × 7,319.32
  4. Step 4: Simplify right side
    13,288.77x = 134,220,290.24
  5. Step 5: Solve for x
    x = 134,220,290.24/13,288.77
  6. Step 6: Final answer
    x = 10,100.28

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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.