Home / 9,254.79-12,770.60-5,478.08

Finding the Fourth Proportional to 9,254.79, 12,770.60 and 5,478.08

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Solution

The fourth proportional to 9,254.79, 12,770.60 and 5,478.08 is: 7,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,254.79 : 12,770.60 = 5,478.08 : x
  2. Step 2: Convert to fraction form
    9,254.79/12,770.60 = 5,478.08/x
  3. Step 3: Cross multiply
    9,254.79x = 12,770.60 × 5,478.08
  4. Step 4: Simplify right side
    9,254.79x = 69,958,277.20
  5. Step 5: Solve for x
    x = 69,958,277.20/9,254.79
  6. Step 6: Final answer
    x = 7,559.14

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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.