Home / 13,883.48-19,154.63-8,220.12

Finding the Fourth Proportional to 13,883.48, 19,154.63 and 8,220.12

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Solution

The fourth proportional to 13,883.48, 19,154.63 and 8,220.12 is: 11,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.48 : 19,154.63 = 8,220.12 : x
  2. Step 2: Convert to fraction form
    13,883.48/19,154.63 = 8,220.12/x
  3. Step 3: Cross multiply
    13,883.48x = 19,154.63 × 8,220.12
  4. Step 4: Simplify right side
    13,883.48x = 157,453,259.64
  5. Step 5: Solve for x
    x = 157,453,259.64/13,883.48
  6. Step 6: Final answer
    x = 11,341.05

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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.