Home / 10,389.40-15,584.10-4,233.40

Finding the Fourth Proportional to 10,389.40, 15,584.10 and 4,233.40

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Solution

The fourth proportional to 10,389.40, 15,584.10 and 4,233.40 is: 6,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.40 : 15,584.10 = 4,233.40 : x
  2. Step 2: Convert to fraction form
    10,389.40/15,584.10 = 4,233.40/x
  3. Step 3: Cross multiply
    10,389.40x = 15,584.10 × 4,233.40
  4. Step 4: Simplify right side
    10,389.40x = 65,973,728.94
  5. Step 5: Solve for x
    x = 65,973,728.94/10,389.40
  6. Step 6: Final answer
    x = 6,350.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.