Home / 8,948.87-12,349.76-4,970.05

Finding the Fourth Proportional to 8,948.87, 12,349.76 and 4,970.05

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Solution

The fourth proportional to 8,948.87, 12,349.76 and 4,970.05 is: 6,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.87 : 12,349.76 = 4,970.05 : x
  2. Step 2: Convert to fraction form
    8,948.87/12,349.76 = 4,970.05/x
  3. Step 3: Cross multiply
    8,948.87x = 12,349.76 × 4,970.05
  4. Step 4: Simplify right side
    8,948.87x = 61,378,868.96
  5. Step 5: Solve for x
    x = 61,378,868.96/8,948.87
  6. Step 6: Final answer
    x = 6,858.84

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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.