Home / 14,071.28-19,418.36-7,783.60

Finding the Fourth Proportional to 14,071.28, 19,418.36 and 7,783.60

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Solution

The fourth proportional to 14,071.28, 19,418.36 and 7,783.60 is: 10,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.28 : 19,418.36 = 7,783.60 : x
  2. Step 2: Convert to fraction form
    14,071.28/19,418.36 = 7,783.60/x
  3. Step 3: Cross multiply
    14,071.28x = 19,418.36 × 7,783.60
  4. Step 4: Simplify right side
    14,071.28x = 151,144,746.90
  5. Step 5: Solve for x
    x = 151,144,746.90/14,071.28
  6. Step 6: Final answer
    x = 10,741.36

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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.