Home / 7,973.10-11,002.23-4,986.90

Finding the Fourth Proportional to 7,973.10, 11,002.23 and 4,986.90

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Solution

The fourth proportional to 7,973.10, 11,002.23 and 4,986.90 is: 6,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.10 : 11,002.23 = 4,986.90 : x
  2. Step 2: Convert to fraction form
    7,973.10/11,002.23 = 4,986.90/x
  3. Step 3: Cross multiply
    7,973.10x = 11,002.23 × 4,986.90
  4. Step 4: Simplify right side
    7,973.10x = 54,867,020.79
  5. Step 5: Solve for x
    x = 54,867,020.79/7,973.10
  6. Step 6: Final answer
    x = 6,881.52

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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.