Home / 14,208.95-21,289.87-8,645.47

Finding the Fourth Proportional to 14,208.95, 21,289.87 and 8,645.47

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Solution

The fourth proportional to 14,208.95, 21,289.87 and 8,645.47 is: 12,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.95 : 21,289.87 = 8,645.47 : x
  2. Step 2: Convert to fraction form
    14,208.95/21,289.87 = 8,645.47/x
  3. Step 3: Cross multiply
    14,208.95x = 21,289.87 × 8,645.47
  4. Step 4: Simplify right side
    14,208.95x = 184,060,889.97
  5. Step 5: Solve for x
    x = 184,060,889.97/14,208.95
  6. Step 6: Final answer
    x = 12,953.87

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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.