Home / 11,985.72-16,542.45-7,513.35

Finding the Fourth Proportional to 11,985.72, 16,542.45 and 7,513.35

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Solution

The fourth proportional to 11,985.72, 16,542.45 and 7,513.35 is: 10,369.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.72 : 16,542.45 = 7,513.35 : x
  2. Step 2: Convert to fraction form
    11,985.72/16,542.45 = 7,513.35/x
  3. Step 3: Cross multiply
    11,985.72x = 16,542.45 × 7,513.35
  4. Step 4: Simplify right side
    11,985.72x = 124,289,216.71
  5. Step 5: Solve for x
    x = 124,289,216.71/11,985.72
  6. Step 6: Final answer
    x = 10,369.77

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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.