Home / 14,155.32-21,233.16-5,390.71

Finding the Fourth Proportional to 14,155.32, 21,233.16 and 5,390.71

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Solution

The fourth proportional to 14,155.32, 21,233.16 and 5,390.71 is: 8,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.32 : 21,233.16 = 5,390.71 : x
  2. Step 2: Convert to fraction form
    14,155.32/21,233.16 = 5,390.71/x
  3. Step 3: Cross multiply
    14,155.32x = 21,233.16 × 5,390.71
  4. Step 4: Simplify right side
    14,155.32x = 114,461,807.94
  5. Step 5: Solve for x
    x = 114,461,807.94/14,155.32
  6. Step 6: Final answer
    x = 8,086.13

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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.