Home / 13,798.63-19,041.90-8,419.84

Finding the Fourth Proportional to 13,798.63, 19,041.90 and 8,419.84

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Solution

The fourth proportional to 13,798.63, 19,041.90 and 8,419.84 is: 11,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.63 : 19,041.90 = 8,419.84 : x
  2. Step 2: Convert to fraction form
    13,798.63/19,041.90 = 8,419.84/x
  3. Step 3: Cross multiply
    13,798.63x = 19,041.90 × 8,419.84
  4. Step 4: Simplify right side
    13,798.63x = 160,329,751.30
  5. Step 5: Solve for x
    x = 160,329,751.30/13,798.63
  6. Step 6: Final answer
    x = 11,619.25

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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.