Home / 19,188.55-26,478.39-10,689.81

Finding the Fourth Proportional to 19,188.55, 26,478.39 and 10,689.81

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Solution

The fourth proportional to 19,188.55, 26,478.39 and 10,689.81 is: 14,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.55 : 26,478.39 = 10,689.81 : x
  2. Step 2: Convert to fraction form
    19,188.55/26,478.39 = 10,689.81/x
  3. Step 3: Cross multiply
    19,188.55x = 26,478.39 × 10,689.81
  4. Step 4: Simplify right side
    19,188.55x = 283,048,958.21
  5. Step 5: Solve for x
    x = 283,048,958.21/19,188.55
  6. Step 6: Final answer
    x = 14,750.93

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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.