Home / 9,148.49-12,620.70-5,370.45

Finding the Fourth Proportional to 9,148.49, 12,620.70 and 5,370.45

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Solution

The fourth proportional to 9,148.49, 12,620.70 and 5,370.45 is: 7,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.49 : 12,620.70 = 5,370.45 : x
  2. Step 2: Convert to fraction form
    9,148.49/12,620.70 = 5,370.45/x
  3. Step 3: Cross multiply
    9,148.49x = 12,620.70 × 5,370.45
  4. Step 4: Simplify right side
    9,148.49x = 67,778,854.43
  5. Step 5: Solve for x
    x = 67,778,854.43/9,148.49
  6. Step 6: Final answer
    x = 7,408.74

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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.