Home / 9,619.81-13,275.60-5,370.71

Finding the Fourth Proportional to 9,619.81, 13,275.60 and 5,370.71

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Solution

The fourth proportional to 9,619.81, 13,275.60 and 5,370.71 is: 7,411.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619.81 : 13,275.60 = 5,370.71 : x
  2. Step 2: Convert to fraction form
    9,619.81/13,275.60 = 5,370.71/x
  3. Step 3: Cross multiply
    9,619.81x = 13,275.60 × 5,370.71
  4. Step 4: Simplify right side
    9,619.81x = 71,299,387.15
  5. Step 5: Solve for x
    x = 71,299,387.15/9,619.81
  6. Step 6: Final answer
    x = 7,411.73

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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.