Home / 12,961.57-17,886.67-7,925.85

Finding the Fourth Proportional to 12,961.57, 17,886.67 and 7,925.85

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Solution

The fourth proportional to 12,961.57, 17,886.67 and 7,925.85 is: 10,937.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.57 : 17,886.67 = 7,925.85 : x
  2. Step 2: Convert to fraction form
    12,961.57/17,886.67 = 7,925.85/x
  3. Step 3: Cross multiply
    12,961.57x = 17,886.67 × 7,925.85
  4. Step 4: Simplify right side
    12,961.57x = 141,767,088.19
  5. Step 5: Solve for x
    x = 141,767,088.19/12,961.57
  6. Step 6: Final answer
    x = 10,937.49

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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.