Home / 9,913.73-13,680.70-5,376.16

Finding the Fourth Proportional to 9,913.73, 13,680.70 and 5,376.16

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Solution

The fourth proportional to 9,913.73, 13,680.70 and 5,376.16 is: 7,418.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.73 : 13,680.70 = 5,376.16 : x
  2. Step 2: Convert to fraction form
    9,913.73/13,680.70 = 5,376.16/x
  3. Step 3: Cross multiply
    9,913.73x = 13,680.70 × 5,376.16
  4. Step 4: Simplify right side
    9,913.73x = 73,549,635.77
  5. Step 5: Solve for x
    x = 73,549,635.77/9,913.73
  6. Step 6: Final answer
    x = 7,418.97

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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.