Home / 11,159.80-15,400.69-6,123.93

Finding the Fourth Proportional to 11,159.80, 15,400.69 and 6,123.93

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Solution

The fourth proportional to 11,159.80, 15,400.69 and 6,123.93 is: 8,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.80 : 15,400.69 = 6,123.93 : x
  2. Step 2: Convert to fraction form
    11,159.80/15,400.69 = 6,123.93/x
  3. Step 3: Cross multiply
    11,159.80x = 15,400.69 × 6,123.93
  4. Step 4: Simplify right side
    11,159.80x = 94,312,716.89
  5. Step 5: Solve for x
    x = 94,312,716.89/11,159.80
  6. Step 6: Final answer
    x = 8,451.11

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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.