Home / 14,681.89-20,256.10-8,307.60

Finding the Fourth Proportional to 14,681.89, 20,256.10 and 8,307.60

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Solution

The fourth proportional to 14,681.89, 20,256.10 and 8,307.60 is: 11,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681.89 : 20,256.10 = 8,307.60 : x
  2. Step 2: Convert to fraction form
    14,681.89/20,256.10 = 8,307.60/x
  3. Step 3: Cross multiply
    14,681.89x = 20,256.10 × 8,307.60
  4. Step 4: Simplify right side
    14,681.89x = 168,279,576.36
  5. Step 5: Solve for x
    x = 168,279,576.36/14,681.89
  6. Step 6: Final answer
    x = 11,461.71

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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.