Home / 12,997.08-19,501.02-7,153.20

Finding the Fourth Proportional to 12,997.08, 19,501.02 and 7,153.20

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Solution

The fourth proportional to 12,997.08, 19,501.02 and 7,153.20 is: 10,732.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.08 : 19,501.02 = 7,153.20 : x
  2. Step 2: Convert to fraction form
    12,997.08/19,501.02 = 7,153.20/x
  3. Step 3: Cross multiply
    12,997.08x = 19,501.02 × 7,153.20
  4. Step 4: Simplify right side
    12,997.08x = 139,494,696.26
  5. Step 5: Solve for x
    x = 139,494,696.26/12,997.08
  6. Step 6: Final answer
    x = 10,732.77

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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.