Home / 19,674.04-27,156.20-13,390.08

Finding the Fourth Proportional to 19,674.04, 27,156.20 and 13,390.08

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Solution

The fourth proportional to 19,674.04, 27,156.20 and 13,390.08 is: 18,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,674.04 : 27,156.20 = 13,390.08 : x
  2. Step 2: Convert to fraction form
    19,674.04/27,156.20 = 13,390.08/x
  3. Step 3: Cross multiply
    19,674.04x = 27,156.20 × 13,390.08
  4. Step 4: Simplify right side
    19,674.04x = 363,623,690.50
  5. Step 5: Solve for x
    x = 363,623,690.50/19,674.04
  6. Step 6: Final answer
    x = 18,482.41

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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.