Home / 13,256.75-18,275.06-9,265.47

Finding the Fourth Proportional to 13,256.75, 18,275.06 and 9,265.47

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Solution

The fourth proportional to 13,256.75, 18,275.06 and 9,265.47 is: 12,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.75 : 18,275.06 = 9,265.47 : x
  2. Step 2: Convert to fraction form
    13,256.75/18,275.06 = 9,265.47/x
  3. Step 3: Cross multiply
    13,256.75x = 18,275.06 × 9,265.47
  4. Step 4: Simplify right side
    13,256.75x = 169,326,973.85
  5. Step 5: Solve for x
    x = 169,326,973.85/13,256.75
  6. Step 6: Final answer
    x = 12,772.89

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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.