Home / 15,506.09-21,402.32-8,795.71

Finding the Fourth Proportional to 15,506.09, 21,402.32 and 8,795.71

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Solution

The fourth proportional to 15,506.09, 21,402.32 and 8,795.71 is: 12,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.09 : 21,402.32 = 8,795.71 : x
  2. Step 2: Convert to fraction form
    15,506.09/21,402.32 = 8,795.71/x
  3. Step 3: Cross multiply
    15,506.09x = 21,402.32 × 8,795.71
  4. Step 4: Simplify right side
    15,506.09x = 188,248,600.05
  5. Step 5: Solve for x
    x = 188,248,600.05/15,506.09
  6. Step 6: Final answer
    x = 12,140.30

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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.