Home / 15,148.65-20,908.26-8,776.29

Finding the Fourth Proportional to 15,148.65, 20,908.26 and 8,776.29

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Solution

The fourth proportional to 15,148.65, 20,908.26 and 8,776.29 is: 12,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148.65 : 20,908.26 = 8,776.29 : x
  2. Step 2: Convert to fraction form
    15,148.65/20,908.26 = 8,776.29/x
  3. Step 3: Cross multiply
    15,148.65x = 20,908.26 × 8,776.29
  4. Step 4: Simplify right side
    15,148.65x = 183,496,953.16
  5. Step 5: Solve for x
    x = 183,496,953.16/15,148.65
  6. Step 6: Final answer
    x = 12,113.09

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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.