Home / 12,875.67-19,322.16-4,555.65

Finding the Fourth Proportional to 12,875.67, 19,322.16 and 4,555.65

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Solution

The fourth proportional to 12,875.67, 19,322.16 and 4,555.65 is: 6,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.67 : 19,322.16 = 4,555.65 : x
  2. Step 2: Convert to fraction form
    12,875.67/19,322.16 = 4,555.65/x
  3. Step 3: Cross multiply
    12,875.67x = 19,322.16 × 4,555.65
  4. Step 4: Simplify right side
    12,875.67x = 88,024,981.12
  5. Step 5: Solve for x
    x = 88,024,981.12/12,875.67
  6. Step 6: Final answer
    x = 6,836.54

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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.