Home / 14,977.90-20,669.47-8,263.95

Finding the Fourth Proportional to 14,977.90, 20,669.47 and 8,263.95

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Solution

The fourth proportional to 14,977.90, 20,669.47 and 8,263.95 is: 11,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.90 : 20,669.47 = 8,263.95 : x
  2. Step 2: Convert to fraction form
    14,977.90/20,669.47 = 8,263.95/x
  3. Step 3: Cross multiply
    14,977.90x = 20,669.47 × 8,263.95
  4. Step 4: Simplify right side
    14,977.90x = 170,811,466.61
  5. Step 5: Solve for x
    x = 170,811,466.61/14,977.90
  6. Step 6: Final answer
    x = 11,404.23

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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.