Home / 15,547.25-21,455.73-8,832.65

Finding the Fourth Proportional to 15,547.25, 21,455.73 and 8,832.65

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Solution

The fourth proportional to 15,547.25, 21,455.73 and 8,832.65 is: 12,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.25 : 21,455.73 = 8,832.65 : x
  2. Step 2: Convert to fraction form
    15,547.25/21,455.73 = 8,832.65/x
  3. Step 3: Cross multiply
    15,547.25x = 21,455.73 × 8,832.65
  4. Step 4: Simplify right side
    15,547.25x = 189,510,846.31
  5. Step 5: Solve for x
    x = 189,510,846.31/15,547.25
  6. Step 6: Final answer
    x = 12,189.35

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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.