Home / 8,423.16-11,626.59-5,439

Finding the Fourth Proportional to 8,423.16, 11,626.59 and 5,439

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Solution

The fourth proportional to 8,423.16, 11,626.59 and 5,439 is: 7,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.16 : 11,626.59 = 5,439 : x
  2. Step 2: Convert to fraction form
    8,423.16/11,626.59 = 5,439/x
  3. Step 3: Cross multiply
    8,423.16x = 11,626.59 × 5,439
  4. Step 4: Simplify right side
    8,423.16x = 63,237,023.01
  5. Step 5: Solve for x
    x = 63,237,023.01/8,423.16
  6. Step 6: Final answer
    x = 7,507.52

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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.