Home / 12,445.49-18,624.35-7,767.69

Finding the Fourth Proportional to 12,445.49, 18,624.35 and 7,767.69

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Solution

The fourth proportional to 12,445.49, 18,624.35 and 7,767.69 is: 11,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.49 : 18,624.35 = 7,767.69 : x
  2. Step 2: Convert to fraction form
    12,445.49/18,624.35 = 7,767.69/x
  3. Step 3: Cross multiply
    12,445.49x = 18,624.35 × 7,767.69
  4. Step 4: Simplify right side
    12,445.49x = 144,668,196.67
  5. Step 5: Solve for x
    x = 144,668,196.67/12,445.49
  6. Step 6: Final answer
    x = 11,624.15

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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.