Home / 9,421.20-13,000.36-5,441.77

Finding the Fourth Proportional to 9,421.20, 13,000.36 and 5,441.77

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Solution

The fourth proportional to 9,421.20, 13,000.36 and 5,441.77 is: 7,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.20 : 13,000.36 = 5,441.77 : x
  2. Step 2: Convert to fraction form
    9,421.20/13,000.36 = 5,441.77/x
  3. Step 3: Cross multiply
    9,421.20x = 13,000.36 × 5,441.77
  4. Step 4: Simplify right side
    9,421.20x = 70,744,969.04
  5. Step 5: Solve for x
    x = 70,744,969.04/9,421.20
  6. Step 6: Final answer
    x = 7,509.13

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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.