Home / 10,265.90-15,400.11-4,421.30

Finding the Fourth Proportional to 10,265.90, 15,400.11 and 4,421.30

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Solution

The fourth proportional to 10,265.90, 15,400.11 and 4,421.30 is: 6,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,265.90 : 15,400.11 = 4,421.30 : x
  2. Step 2: Convert to fraction form
    10,265.90/15,400.11 = 4,421.30/x
  3. Step 3: Cross multiply
    10,265.90x = 15,400.11 × 4,421.30
  4. Step 4: Simplify right side
    10,265.90x = 68,088,506.34
  5. Step 5: Solve for x
    x = 68,088,506.34/10,265.90
  6. Step 6: Final answer
    x = 6,632.49

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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.