Home / 15,699.12-23,557.80-5,176.80

Finding the Fourth Proportional to 15,699.12, 23,557.80 and 5,176.80

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Solution

The fourth proportional to 15,699.12, 23,557.80 and 5,176.80 is: 7,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.12 : 23,557.80 = 5,176.80 : x
  2. Step 2: Convert to fraction form
    15,699.12/23,557.80 = 5,176.80/x
  3. Step 3: Cross multiply
    15,699.12x = 23,557.80 × 5,176.80
  4. Step 4: Simplify right side
    15,699.12x = 121,954,019.04
  5. Step 5: Solve for x
    x = 121,954,019.04/15,699.12
  6. Step 6: Final answer
    x = 7,768.21

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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.