Home / 18,890.40-26,071.36-10,937.28

Finding the Fourth Proportional to 18,890.40, 26,071.36 and 10,937.28

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Solution

The fourth proportional to 18,890.40, 26,071.36 and 10,937.28 is: 15,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.40 : 26,071.36 = 10,937.28 : x
  2. Step 2: Convert to fraction form
    18,890.40/26,071.36 = 10,937.28/x
  3. Step 3: Cross multiply
    18,890.40x = 26,071.36 × 10,937.28
  4. Step 4: Simplify right side
    18,890.40x = 285,149,764.30
  5. Step 5: Solve for x
    x = 285,149,764.30/18,890.40
  6. Step 6: Final answer
    x = 15,094.96

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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.