Home / 11,265.71-15,530.18-7,898.36

Finding the Fourth Proportional to 11,265.71, 15,530.18 and 7,898.36

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Solution

The fourth proportional to 11,265.71, 15,530.18 and 7,898.36 is: 10,888.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.71 : 15,530.18 = 7,898.36 : x
  2. Step 2: Convert to fraction form
    11,265.71/15,530.18 = 7,898.36/x
  3. Step 3: Cross multiply
    11,265.71x = 15,530.18 × 7,898.36
  4. Step 4: Simplify right side
    11,265.71x = 122,662,835.36
  5. Step 5: Solve for x
    x = 122,662,835.36/11,265.71
  6. Step 6: Final answer
    x = 10,888.16

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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.