Home / 18,539.48-25,590.72-11,271.52

Finding the Fourth Proportional to 18,539.48, 25,590.72 and 11,271.52

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Solution

The fourth proportional to 18,539.48, 25,590.72 and 11,271.52 is: 15,558.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.48 : 25,590.72 = 11,271.52 : x
  2. Step 2: Convert to fraction form
    18,539.48/25,590.72 = 11,271.52/x
  3. Step 3: Cross multiply
    18,539.48x = 25,590.72 × 11,271.52
  4. Step 4: Simplify right side
    18,539.48x = 288,446,312.29
  5. Step 5: Solve for x
    x = 288,446,312.29/18,539.48
  6. Step 6: Final answer
    x = 15,558.49

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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.