Home / 12,887.24-19,317.46-7,328.60

Finding the Fourth Proportional to 12,887.24, 19,317.46 and 7,328.60

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Solution

The fourth proportional to 12,887.24, 19,317.46 and 7,328.60 is: 10,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.24 : 19,317.46 = 7,328.60 : x
  2. Step 2: Convert to fraction form
    12,887.24/19,317.46 = 7,328.60/x
  3. Step 3: Cross multiply
    12,887.24x = 19,317.46 × 7,328.60
  4. Step 4: Simplify right side
    12,887.24x = 141,569,937.36
  5. Step 5: Solve for x
    x = 141,569,937.36/12,887.24
  6. Step 6: Final answer
    x = 10,985.28

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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.