Home / 18,622.32-25,703.64-12,332.40

Finding the Fourth Proportional to 18,622.32, 25,703.64 and 12,332.40

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Solution

The fourth proportional to 18,622.32, 25,703.64 and 12,332.40 is: 17,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.32 : 25,703.64 = 12,332.40 : x
  2. Step 2: Convert to fraction form
    18,622.32/25,703.64 = 12,332.40/x
  3. Step 3: Cross multiply
    18,622.32x = 25,703.64 × 12,332.40
  4. Step 4: Simplify right side
    18,622.32x = 316,987,569.94
  5. Step 5: Solve for x
    x = 316,987,569.94/18,622.32
  6. Step 6: Final answer
    x = 17,021.92

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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.