Home / 13,217.16-18,258.66-10,561.08

Finding the Fourth Proportional to 13,217.16, 18,258.66 and 10,561.08

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Solution

The fourth proportional to 13,217.16, 18,258.66 and 10,561.08 is: 14,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.16 : 18,258.66 = 10,561.08 : x
  2. Step 2: Convert to fraction form
    13,217.16/18,258.66 = 10,561.08/x
  3. Step 3: Cross multiply
    13,217.16x = 18,258.66 × 10,561.08
  4. Step 4: Simplify right side
    13,217.16x = 192,831,168.95
  5. Step 5: Solve for x
    x = 192,831,168.95/13,217.16
  6. Step 6: Final answer
    x = 14,589.46

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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.