Home / 7,187.74-10,783.40-5,712.53

Finding the Fourth Proportional to 7,187.74, 10,783.40 and 5,712.53

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Solution

The fourth proportional to 7,187.74, 10,783.40 and 5,712.53 is: 8,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.74 : 10,783.40 = 5,712.53 : x
  2. Step 2: Convert to fraction form
    7,187.74/10,783.40 = 5,712.53/x
  3. Step 3: Cross multiply
    7,187.74x = 10,783.40 × 5,712.53
  4. Step 4: Simplify right side
    7,187.74x = 61,600,413.52
  5. Step 5: Solve for x
    x = 61,600,413.52/7,187.74
  6. Step 6: Final answer
    x = 8,570.21

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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.