Home / 14,669.60-21,985.84-8,506.40

Finding the Fourth Proportional to 14,669.60, 21,985.84 and 8,506.40

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Solution

The fourth proportional to 14,669.60, 21,985.84 and 8,506.40 is: 12,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.60 : 21,985.84 = 8,506.40 : x
  2. Step 2: Convert to fraction form
    14,669.60/21,985.84 = 8,506.40/x
  3. Step 3: Cross multiply
    14,669.60x = 21,985.84 × 8,506.40
  4. Step 4: Simplify right side
    14,669.60x = 187,020,349.38
  5. Step 5: Solve for x
    x = 187,020,349.38/14,669.60
  6. Step 6: Final answer
    x = 12,748.84

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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.