Home / 12,666.60-19,000.98-3,307.86

Finding the Fourth Proportional to 12,666.60, 19,000.98 and 3,307.86

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Solution

The fourth proportional to 12,666.60, 19,000.98 and 3,307.86 is: 4,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.60 : 19,000.98 = 3,307.86 : x
  2. Step 2: Convert to fraction form
    12,666.60/19,000.98 = 3,307.86/x
  3. Step 3: Cross multiply
    12,666.60x = 19,000.98 × 3,307.86
  4. Step 4: Simplify right side
    12,666.60x = 62,852,581.70
  5. Step 5: Solve for x
    x = 62,852,581.70/12,666.60
  6. Step 6: Final answer
    x = 4,962.07

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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.