Home / 10,438.52-15,657.57-2,647.13

Finding the Fourth Proportional to 10,438.52, 15,657.57 and 2,647.13

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Solution

The fourth proportional to 10,438.52, 15,657.57 and 2,647.13 is: 3,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.52 : 15,657.57 = 2,647.13 : x
  2. Step 2: Convert to fraction form
    10,438.52/15,657.57 = 2,647.13/x
  3. Step 3: Cross multiply
    10,438.52x = 15,657.57 × 2,647.13
  4. Step 4: Simplify right side
    10,438.52x = 41,447,544.99
  5. Step 5: Solve for x
    x = 41,447,544.99/10,438.52
  6. Step 6: Final answer
    x = 3,970.64

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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.