Home / 9,623.12-13,278.12-5,430.56

Finding the Fourth Proportional to 9,623.12, 13,278.12 and 5,430.56

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Solution

The fourth proportional to 9,623.12, 13,278.12 and 5,430.56 is: 7,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,623.12 : 13,278.12 = 5,430.56 : x
  2. Step 2: Convert to fraction form
    9,623.12/13,278.12 = 5,430.56/x
  3. Step 3: Cross multiply
    9,623.12x = 13,278.12 × 5,430.56
  4. Step 4: Simplify right side
    9,623.12x = 72,107,627.35
  5. Step 5: Solve for x
    x = 72,107,627.35/9,623.12
  6. Step 6: Final answer
    x = 7,493.17

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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.