Home / 10,389.64-15,575.18-3,814.30

Finding the Fourth Proportional to 10,389.64, 15,575.18 and 3,814.30

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Solution

The fourth proportional to 10,389.64, 15,575.18 and 3,814.30 is: 5,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.64 : 15,575.18 = 3,814.30 : x
  2. Step 2: Convert to fraction form
    10,389.64/15,575.18 = 3,814.30/x
  3. Step 3: Cross multiply
    10,389.64x = 15,575.18 × 3,814.30
  4. Step 4: Simplify right side
    10,389.64x = 59,408,409.07
  5. Step 5: Solve for x
    x = 59,408,409.07/10,389.64
  6. Step 6: Final answer
    x = 5,718.04

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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.