Home / 9,895.58-13,655.70-5,419.25

Finding the Fourth Proportional to 9,895.58, 13,655.70 and 5,419.25

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Solution

The fourth proportional to 9,895.58, 13,655.70 and 5,419.25 is: 7,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.58 : 13,655.70 = 5,419.25 : x
  2. Step 2: Convert to fraction form
    9,895.58/13,655.70 = 5,419.25/x
  3. Step 3: Cross multiply
    9,895.58x = 13,655.70 × 5,419.25
  4. Step 4: Simplify right side
    9,895.58x = 74,003,652.23
  5. Step 5: Solve for x
    x = 74,003,652.23/9,895.58
  6. Step 6: Final answer
    x = 7,478.46

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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.