Home / 18,526.98-27,688.47-13,539.72

Finding the Fourth Proportional to 18,526.98, 27,688.47 and 13,539.72

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Solution

The fourth proportional to 18,526.98, 27,688.47 and 13,539.72 is: 20,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.98 : 27,688.47 = 13,539.72 : x
  2. Step 2: Convert to fraction form
    18,526.98/27,688.47 = 13,539.72/x
  3. Step 3: Cross multiply
    18,526.98x = 27,688.47 × 13,539.72
  4. Step 4: Simplify right side
    18,526.98x = 374,894,131.03
  5. Step 5: Solve for x
    x = 374,894,131.03/18,526.98
  6. Step 6: Final answer
    x = 20,235.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.