Home / 9,313.47-13,965.75-4,378.95

Finding the Fourth Proportional to 9,313.47, 13,965.75 and 4,378.95

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Solution

The fourth proportional to 9,313.47, 13,965.75 and 4,378.95 is: 6,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.47 : 13,965.75 = 4,378.95 : x
  2. Step 2: Convert to fraction form
    9,313.47/13,965.75 = 4,378.95/x
  3. Step 3: Cross multiply
    9,313.47x = 13,965.75 × 4,378.95
  4. Step 4: Simplify right side
    9,313.47x = 61,155,320.96
  5. Step 5: Solve for x
    x = 61,155,320.96/9,313.47
  6. Step 6: Final answer
    x = 6,566.33

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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.