Home / 15,565.37-21,480.69-8,850.57

Finding the Fourth Proportional to 15,565.37, 21,480.69 and 8,850.57

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Solution

The fourth proportional to 15,565.37, 21,480.69 and 8,850.57 is: 12,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.37 : 21,480.69 = 8,850.57 : x
  2. Step 2: Convert to fraction form
    15,565.37/21,480.69 = 8,850.57/x
  3. Step 3: Cross multiply
    15,565.37x = 21,480.69 × 8,850.57
  4. Step 4: Simplify right side
    15,565.37x = 190,116,303.13
  5. Step 5: Solve for x
    x = 190,116,303.13/15,565.37
  6. Step 6: Final answer
    x = 12,214.06

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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.