Home / 14,927.63-20,600.12-8,640

Finding the Fourth Proportional to 14,927.63, 20,600.12 and 8,640

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Solution

The fourth proportional to 14,927.63, 20,600.12 and 8,640 is: 11,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,927.63 : 20,600.12 = 8,640 : x
  2. Step 2: Convert to fraction form
    14,927.63/20,600.12 = 8,640/x
  3. Step 3: Cross multiply
    14,927.63x = 20,600.12 × 8,640
  4. Step 4: Simplify right side
    14,927.63x = 177,985,058.40
  5. Step 5: Solve for x
    x = 177,985,058.40/14,927.63
  6. Step 6: Final answer
    x = 11,923.20

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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.