Home / 11,298-15,587.60-6,823.20

Finding the Fourth Proportional to 11,298, 15,587.60 and 6,823.20

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Solution

The fourth proportional to 11,298, 15,587.60 and 6,823.20 is: 9,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,298 : 15,587.60 = 6,823.20 : x
  2. Step 2: Convert to fraction form
    11,298/15,587.60 = 6,823.20/x
  3. Step 3: Cross multiply
    11,298x = 15,587.60 × 6,823.20
  4. Step 4: Simplify right side
    11,298x = 106,357,312.32
  5. Step 5: Solve for x
    x = 106,357,312.32/11,298
  6. Step 6: Final answer
    x = 9,413.82

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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.