Home / 18,920.71-26,110.27-10,423.64

Finding the Fourth Proportional to 18,920.71, 26,110.27 and 10,423.64

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Solution

The fourth proportional to 18,920.71, 26,110.27 and 10,423.64 is: 14,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.71 : 26,110.27 = 10,423.64 : x
  2. Step 2: Convert to fraction form
    18,920.71/26,110.27 = 10,423.64/x
  3. Step 3: Cross multiply
    18,920.71x = 26,110.27 × 10,423.64
  4. Step 4: Simplify right side
    18,920.71x = 272,164,054.78
  5. Step 5: Solve for x
    x = 272,164,054.78/18,920.71
  6. Step 6: Final answer
    x = 14,384.45

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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.