Home / 13,670.14-20,483.65-9,955.28

Finding the Fourth Proportional to 13,670.14, 20,483.65 and 9,955.28

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Solution

The fourth proportional to 13,670.14, 20,483.65 and 9,955.28 is: 14,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.14 : 20,483.65 = 9,955.28 : x
  2. Step 2: Convert to fraction form
    13,670.14/20,483.65 = 9,955.28/x
  3. Step 3: Cross multiply
    13,670.14x = 20,483.65 × 9,955.28
  4. Step 4: Simplify right side
    13,670.14x = 203,920,471.17
  5. Step 5: Solve for x
    x = 203,920,471.17/13,670.14
  6. Step 6: Final answer
    x = 14,917.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.