Home / 15,707.32-21,675.58-8,993.60

Finding the Fourth Proportional to 15,707.32, 21,675.58 and 8,993.60

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Solution

The fourth proportional to 15,707.32, 21,675.58 and 8,993.60 is: 12,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.32 : 21,675.58 = 8,993.60 : x
  2. Step 2: Convert to fraction form
    15,707.32/21,675.58 = 8,993.60/x
  3. Step 3: Cross multiply
    15,707.32x = 21,675.58 × 8,993.60
  4. Step 4: Simplify right side
    15,707.32x = 194,941,496.29
  5. Step 5: Solve for x
    x = 194,941,496.29/15,707.32
  6. Step 6: Final answer
    x = 12,410.87

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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.