Home / 11,140.62-15,373.04-6,423.99

Finding the Fourth Proportional to 11,140.62, 15,373.04 and 6,423.99

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Solution

The fourth proportional to 11,140.62, 15,373.04 and 6,423.99 is: 8,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.62 : 15,373.04 = 6,423.99 : x
  2. Step 2: Convert to fraction form
    11,140.62/15,373.04 = 6,423.99/x
  3. Step 3: Cross multiply
    11,140.62x = 15,373.04 × 6,423.99
  4. Step 4: Simplify right side
    11,140.62x = 98,756,223.11
  5. Step 5: Solve for x
    x = 98,756,223.11/11,140.62
  6. Step 6: Final answer
    x = 8,864.52

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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.