Home / 9,184.52-13,776.48-3,990.40

Finding the Fourth Proportional to 9,184.52, 13,776.48 and 3,990.40

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Solution

The fourth proportional to 9,184.52, 13,776.48 and 3,990.40 is: 5,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,184.52 : 13,776.48 = 3,990.40 : x
  2. Step 2: Convert to fraction form
    9,184.52/13,776.48 = 3,990.40/x
  3. Step 3: Cross multiply
    9,184.52x = 13,776.48 × 3,990.40
  4. Step 4: Simplify right side
    9,184.52x = 54,973,631.35
  5. Step 5: Solve for x
    x = 54,973,631.35/9,184.52
  6. Step 6: Final answer
    x = 5,985.46

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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.