Home / 9,278.72-13,921.36-4,085.04

Finding the Fourth Proportional to 9,278.72, 13,921.36 and 4,085.04

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Solution

The fourth proportional to 9,278.72, 13,921.36 and 4,085.04 is: 6,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.72 : 13,921.36 = 4,085.04 : x
  2. Step 2: Convert to fraction form
    9,278.72/13,921.36 = 4,085.04/x
  3. Step 3: Cross multiply
    9,278.72x = 13,921.36 × 4,085.04
  4. Step 4: Simplify right side
    9,278.72x = 56,869,312.45
  5. Step 5: Solve for x
    x = 56,869,312.45/9,278.72
  6. Step 6: Final answer
    x = 6,129.00

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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.