Home / 8,423.40-11,624.04-5,281.32

Finding the Fourth Proportional to 8,423.40, 11,624.04 and 5,281.32

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Solution

The fourth proportional to 8,423.40, 11,624.04 and 5,281.32 is: 7,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.40 : 11,624.04 = 5,281.32 : x
  2. Step 2: Convert to fraction form
    8,423.40/11,624.04 = 5,281.32/x
  3. Step 3: Cross multiply
    8,423.40x = 11,624.04 × 5,281.32
  4. Step 4: Simplify right side
    8,423.40x = 61,390,274.93
  5. Step 5: Solve for x
    x = 61,390,274.93/8,423.40
  6. Step 6: Final answer
    x = 7,288.06

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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.