Home / 9,159.15-13,740.53-3,315.63

Finding the Fourth Proportional to 9,159.15, 13,740.53 and 3,315.63

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Solution

The fourth proportional to 9,159.15, 13,740.53 and 3,315.63 is: 4,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.15 : 13,740.53 = 3,315.63 : x
  2. Step 2: Convert to fraction form
    9,159.15/13,740.53 = 3,315.63/x
  3. Step 3: Cross multiply
    9,159.15x = 13,740.53 × 3,315.63
  4. Step 4: Simplify right side
    9,159.15x = 45,558,496.91
  5. Step 5: Solve for x
    x = 45,558,496.91/9,159.15
  6. Step 6: Final answer
    x = 4,974.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.