Home / 10,869.30-14,999.67-6,153.90

Finding the Fourth Proportional to 10,869.30, 14,999.67 and 6,153.90

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Solution

The fourth proportional to 10,869.30, 14,999.67 and 6,153.90 is: 8,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.30 : 14,999.67 = 6,153.90 : x
  2. Step 2: Convert to fraction form
    10,869.30/14,999.67 = 6,153.90/x
  3. Step 3: Cross multiply
    10,869.30x = 14,999.67 × 6,153.90
  4. Step 4: Simplify right side
    10,869.30x = 92,306,469.21
  5. Step 5: Solve for x
    x = 92,306,469.21/10,869.30
  6. Step 6: Final answer
    x = 8,492.40

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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.