Home / 18,315.98-25,276.65-11,946.74

Finding the Fourth Proportional to 18,315.98, 25,276.65 and 11,946.74

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Solution

The fourth proportional to 18,315.98, 25,276.65 and 11,946.74 is: 16,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.98 : 25,276.65 = 11,946.74 : x
  2. Step 2: Convert to fraction form
    18,315.98/25,276.65 = 11,946.74/x
  3. Step 3: Cross multiply
    18,315.98x = 25,276.65 × 11,946.74
  4. Step 4: Simplify right side
    18,315.98x = 301,973,565.62
  5. Step 5: Solve for x
    x = 301,973,565.62/18,315.98
  6. Step 6: Final answer
    x = 16,486.89

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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.