Home / 9,420.74-13,000.65-5,229.02

Finding the Fourth Proportional to 9,420.74, 13,000.65 and 5,229.02

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Solution

The fourth proportional to 9,420.74, 13,000.65 and 5,229.02 is: 7,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.74 : 13,000.65 = 5,229.02 : x
  2. Step 2: Convert to fraction form
    9,420.74/13,000.65 = 5,229.02/x
  3. Step 3: Cross multiply
    9,420.74x = 13,000.65 × 5,229.02
  4. Step 4: Simplify right side
    9,420.74x = 67,980,658.86
  5. Step 5: Solve for x
    x = 67,980,658.86/9,420.74
  6. Step 6: Final answer
    x = 7,216.06

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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.