Home / 14,431.55-21,658.66-7,411.28

Finding the Fourth Proportional to 14,431.55, 21,658.66 and 7,411.28

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Solution

The fourth proportional to 14,431.55, 21,658.66 and 7,411.28 is: 11,122.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.55 : 21,658.66 = 7,411.28 : x
  2. Step 2: Convert to fraction form
    14,431.55/21,658.66 = 7,411.28/x
  3. Step 3: Cross multiply
    14,431.55x = 21,658.66 × 7,411.28
  4. Step 4: Simplify right side
    14,431.55x = 160,518,266.86
  5. Step 5: Solve for x
    x = 160,518,266.86/14,431.55
  6. Step 6: Final answer
    x = 11,122.74

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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.