Home / 11,153.04-15,391.21-6,117.30

Finding the Fourth Proportional to 11,153.04, 15,391.21 and 6,117.30

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Solution

The fourth proportional to 11,153.04, 15,391.21 and 6,117.30 is: 8,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.04 : 15,391.21 = 6,117.30 : x
  2. Step 2: Convert to fraction form
    11,153.04/15,391.21 = 6,117.30/x
  3. Step 3: Cross multiply
    11,153.04x = 15,391.21 × 6,117.30
  4. Step 4: Simplify right side
    11,153.04x = 94,152,652.63
  5. Step 5: Solve for x
    x = 94,152,652.63/11,153.04
  6. Step 6: Final answer
    x = 8,441.88

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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.