Home / 12,341.88-18,515.55-5,764.47

Finding the Fourth Proportional to 12,341.88, 18,515.55 and 5,764.47

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Solution

The fourth proportional to 12,341.88, 18,515.55 and 5,764.47 is: 8,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.88 : 18,515.55 = 5,764.47 : x
  2. Step 2: Convert to fraction form
    12,341.88/18,515.55 = 5,764.47/x
  3. Step 3: Cross multiply
    12,341.88x = 18,515.55 × 5,764.47
  4. Step 4: Simplify right side
    12,341.88x = 106,732,332.51
  5. Step 5: Solve for x
    x = 106,732,332.51/12,341.88
  6. Step 6: Final answer
    x = 8,647.98

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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.