Home / 12,369.70-18,565.35-9,898.30

Finding the Fourth Proportional to 12,369.70, 18,565.35 and 9,898.30

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Solution

The fourth proportional to 12,369.70, 18,565.35 and 9,898.30 is: 14,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.70 : 18,565.35 = 9,898.30 : x
  2. Step 2: Convert to fraction form
    12,369.70/18,565.35 = 9,898.30/x
  3. Step 3: Cross multiply
    12,369.70x = 18,565.35 × 9,898.30
  4. Step 4: Simplify right side
    12,369.70x = 183,765,403.91
  5. Step 5: Solve for x
    x = 183,765,403.91/12,369.70
  6. Step 6: Final answer
    x = 14,856.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.