Home / 11,587.25-15,984.50-7,331.13

Finding the Fourth Proportional to 11,587.25, 15,984.50 and 7,331.13

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Solution

The fourth proportional to 11,587.25, 15,984.50 and 7,331.13 is: 10,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.25 : 15,984.50 = 7,331.13 : x
  2. Step 2: Convert to fraction form
    11,587.25/15,984.50 = 7,331.13/x
  3. Step 3: Cross multiply
    11,587.25x = 15,984.50 × 7,331.13
  4. Step 4: Simplify right side
    11,587.25x = 117,184,410.83
  5. Step 5: Solve for x
    x = 117,184,410.83/11,587.25
  6. Step 6: Final answer
    x = 10,113.22

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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.