Home / 18,423.40-25,416.66-12,837.64

Finding the Fourth Proportional to 18,423.40, 25,416.66 and 12,837.64

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Solution

The fourth proportional to 18,423.40, 25,416.66 and 12,837.64 is: 17,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.40 : 25,416.66 = 12,837.64 : x
  2. Step 2: Convert to fraction form
    18,423.40/25,416.66 = 12,837.64/x
  3. Step 3: Cross multiply
    18,423.40x = 25,416.66 × 12,837.64
  4. Step 4: Simplify right side
    18,423.40x = 326,289,931.08
  5. Step 5: Solve for x
    x = 326,289,931.08/18,423.40
  6. Step 6: Final answer
    x = 17,710.63

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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.