Home / 14,455.72-19,951.86-8,490.52

Finding the Fourth Proportional to 14,455.72, 19,951.86 and 8,490.52

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Solution

The fourth proportional to 14,455.72, 19,951.86 and 8,490.52 is: 11,718.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.72 : 19,951.86 = 8,490.52 : x
  2. Step 2: Convert to fraction form
    14,455.72/19,951.86 = 8,490.52/x
  3. Step 3: Cross multiply
    14,455.72x = 19,951.86 × 8,490.52
  4. Step 4: Simplify right side
    14,455.72x = 169,401,666.37
  5. Step 5: Solve for x
    x = 169,401,666.37/14,455.72
  6. Step 6: Final answer
    x = 11,718.66

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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.