Home / 12,455.77-18,688.65-5,060.80

Finding the Fourth Proportional to 12,455.77, 18,688.65 and 5,060.80

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Solution

The fourth proportional to 12,455.77, 18,688.65 and 5,060.80 is: 7,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.77 : 18,688.65 = 5,060.80 : x
  2. Step 2: Convert to fraction form
    12,455.77/18,688.65 = 5,060.80/x
  3. Step 3: Cross multiply
    12,455.77x = 18,688.65 × 5,060.80
  4. Step 4: Simplify right side
    12,455.77x = 94,579,519.92
  5. Step 5: Solve for x
    x = 94,579,519.92/12,455.77
  6. Step 6: Final answer
    x = 7,593.23

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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.