Home / 14,307.72-21,471.12-6,516.60

Finding the Fourth Proportional to 14,307.72, 21,471.12 and 6,516.60

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Solution

The fourth proportional to 14,307.72, 21,471.12 and 6,516.60 is: 9,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.72 : 21,471.12 = 6,516.60 : x
  2. Step 2: Convert to fraction form
    14,307.72/21,471.12 = 6,516.60/x
  3. Step 3: Cross multiply
    14,307.72x = 21,471.12 × 6,516.60
  4. Step 4: Simplify right side
    14,307.72x = 139,918,700.59
  5. Step 5: Solve for x
    x = 139,918,700.59/14,307.72
  6. Step 6: Final answer
    x = 9,779.25

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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.