Home / 19,390.58-26,756.87-10,890.74

Finding the Fourth Proportional to 19,390.58, 26,756.87 and 10,890.74

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Solution

The fourth proportional to 19,390.58, 26,756.87 and 10,890.74 is: 15,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.58 : 26,756.87 = 10,890.74 : x
  2. Step 2: Convert to fraction form
    19,390.58/26,756.87 = 10,890.74/x
  3. Step 3: Cross multiply
    19,390.58x = 26,756.87 × 10,890.74
  4. Step 4: Simplify right side
    19,390.58x = 291,402,208.50
  5. Step 5: Solve for x
    x = 291,402,208.50/19,390.58
  6. Step 6: Final answer
    x = 15,028.03

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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.