Home / 15,117.12-20,847.66-9,450.06

Finding the Fourth Proportional to 15,117.12, 20,847.66 and 9,450.06

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Solution

The fourth proportional to 15,117.12, 20,847.66 and 9,450.06 is: 13,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.12 : 20,847.66 = 9,450.06 : x
  2. Step 2: Convert to fraction form
    15,117.12/20,847.66 = 9,450.06/x
  3. Step 3: Cross multiply
    15,117.12x = 20,847.66 × 9,450.06
  4. Step 4: Simplify right side
    15,117.12x = 197,011,637.86
  5. Step 5: Solve for x
    x = 197,011,637.86/15,117.12
  6. Step 6: Final answer
    x = 13,032.35

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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.