Home / 9,131.30-12,600.89-5,303.36

Finding the Fourth Proportional to 9,131.30, 12,600.89 and 5,303.36

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Solution

The fourth proportional to 9,131.30, 12,600.89 and 5,303.36 is: 7,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.30 : 12,600.89 = 5,303.36 : x
  2. Step 2: Convert to fraction form
    9,131.30/12,600.89 = 5,303.36/x
  3. Step 3: Cross multiply
    9,131.30x = 12,600.89 × 5,303.36
  4. Step 4: Simplify right side
    9,131.30x = 66,827,055.99
  5. Step 5: Solve for x
    x = 66,827,055.99/9,131.30
  6. Step 6: Final answer
    x = 7,318.46

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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.