Home / 18,926.32-26,118.60-10,861.28

Finding the Fourth Proportional to 18,926.32, 26,118.60 and 10,861.28

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Solution

The fourth proportional to 18,926.32, 26,118.60 and 10,861.28 is: 14,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.32 : 26,118.60 = 10,861.28 : x
  2. Step 2: Convert to fraction form
    18,926.32/26,118.60 = 10,861.28/x
  3. Step 3: Cross multiply
    18,926.32x = 26,118.60 × 10,861.28
  4. Step 4: Simplify right side
    18,926.32x = 283,681,427.81
  5. Step 5: Solve for x
    x = 283,681,427.81/18,926.32
  6. Step 6: Final answer
    x = 14,988.73

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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.