Home / 11,159.84-15,417.36-7,340.60

Finding the Fourth Proportional to 11,159.84, 15,417.36 and 7,340.60

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Solution

The fourth proportional to 11,159.84, 15,417.36 and 7,340.60 is: 10,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.84 : 15,417.36 = 7,340.60 : x
  2. Step 2: Convert to fraction form
    11,159.84/15,417.36 = 7,340.60/x
  3. Step 3: Cross multiply
    11,159.84x = 15,417.36 × 7,340.60
  4. Step 4: Simplify right side
    11,159.84x = 113,172,672.82
  5. Step 5: Solve for x
    x = 113,172,672.82/11,159.84
  6. Step 6: Final answer
    x = 10,141.07

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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.