Home / 11,279.58-15,557.40-10,004.91

Finding the Fourth Proportional to 11,279.58, 15,557.40 and 10,004.91

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Solution

The fourth proportional to 11,279.58, 15,557.40 and 10,004.91 is: 13,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.58 : 15,557.40 = 10,004.91 : x
  2. Step 2: Convert to fraction form
    11,279.58/15,557.40 = 10,004.91/x
  3. Step 3: Cross multiply
    11,279.58x = 15,557.40 × 10,004.91
  4. Step 4: Simplify right side
    11,279.58x = 155,650,386.83
  5. Step 5: Solve for x
    x = 155,650,386.83/11,279.58
  6. Step 6: Final answer
    x = 13,799.31

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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.