Home / 14,779.50-20,395.53-8,491.38

Finding the Fourth Proportional to 14,779.50, 20,395.53 and 8,491.38

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Solution

The fourth proportional to 14,779.50, 20,395.53 and 8,491.38 is: 11,718.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.50 : 20,395.53 = 8,491.38 : x
  2. Step 2: Convert to fraction form
    14,779.50/20,395.53 = 8,491.38/x
  3. Step 3: Cross multiply
    14,779.50x = 20,395.53 × 8,491.38
  4. Step 4: Simplify right side
    14,779.50x = 173,186,195.53
  5. Step 5: Solve for x
    x = 173,186,195.53/14,779.50
  6. Step 6: Final answer
    x = 11,718.00

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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.