Home / 11,176.85-15,423.13-6,140.81

Finding the Fourth Proportional to 11,176.85, 15,423.13 and 6,140.81

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Solution

The fourth proportional to 11,176.85, 15,423.13 and 6,140.81 is: 8,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.85 : 15,423.13 = 6,140.81 : x
  2. Step 2: Convert to fraction form
    11,176.85/15,423.13 = 6,140.81/x
  3. Step 3: Cross multiply
    11,176.85x = 15,423.13 × 6,140.81
  4. Step 4: Simplify right side
    11,176.85x = 94,710,510.94
  5. Step 5: Solve for x
    x = 94,710,510.94/11,176.85
  6. Step 6: Final answer
    x = 8,473.81

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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.