Home / 12,650.08-17,457.80-7,346.56

Finding the Fourth Proportional to 12,650.08, 17,457.80 and 7,346.56

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Solution

The fourth proportional to 12,650.08, 17,457.80 and 7,346.56 is: 10,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.08 : 17,457.80 = 7,346.56 : x
  2. Step 2: Convert to fraction form
    12,650.08/17,457.80 = 7,346.56/x
  3. Step 3: Cross multiply
    12,650.08x = 17,457.80 × 7,346.56
  4. Step 4: Simplify right side
    12,650.08x = 128,254,775.17
  5. Step 5: Solve for x
    x = 128,254,775.17/12,650.08
  6. Step 6: Final answer
    x = 10,138.65

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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.