Home / 9,671.64-13,346.06-5,421.70

Finding the Fourth Proportional to 9,671.64, 13,346.06 and 5,421.70

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Solution

The fourth proportional to 9,671.64, 13,346.06 and 5,421.70 is: 7,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,671.64 : 13,346.06 = 5,421.70 : x
  2. Step 2: Convert to fraction form
    9,671.64/13,346.06 = 5,421.70/x
  3. Step 3: Cross multiply
    9,671.64x = 13,346.06 × 5,421.70
  4. Step 4: Simplify right side
    9,671.64x = 72,358,333.50
  5. Step 5: Solve for x
    x = 72,358,333.50/9,671.64
  6. Step 6: Final answer
    x = 7,481.50

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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.