Home / 12,220.36-16,856.58-10,652.20

Finding the Fourth Proportional to 12,220.36, 16,856.58 and 10,652.20

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Solution

The fourth proportional to 12,220.36, 16,856.58 and 10,652.20 is: 14,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.36 : 16,856.58 = 10,652.20 : x
  2. Step 2: Convert to fraction form
    12,220.36/16,856.58 = 10,652.20/x
  3. Step 3: Cross multiply
    12,220.36x = 16,856.58 × 10,652.20
  4. Step 4: Simplify right side
    12,220.36x = 179,559,661.48
  5. Step 5: Solve for x
    x = 179,559,661.48/12,220.36
  6. Step 6: Final answer
    x = 14,693.48

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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.