Home / 11,210.60-15,480.96-7,238.48

Finding the Fourth Proportional to 11,210.60, 15,480.96 and 7,238.48

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Solution

The fourth proportional to 11,210.60, 15,480.96 and 7,238.48 is: 9,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.60 : 15,480.96 = 7,238.48 : x
  2. Step 2: Convert to fraction form
    11,210.60/15,480.96 = 7,238.48/x
  3. Step 3: Cross multiply
    11,210.60x = 15,480.96 × 7,238.48
  4. Step 4: Simplify right side
    11,210.60x = 112,058,619.34
  5. Step 5: Solve for x
    x = 112,058,619.34/11,210.60
  6. Step 6: Final answer
    x = 9,995.77

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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.