Home / 11,340.57-15,664.95-9,458.31

Finding the Fourth Proportional to 11,340.57, 15,664.95 and 9,458.31

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Solution

The fourth proportional to 11,340.57, 15,664.95 and 9,458.31 is: 13,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.57 : 15,664.95 = 9,458.31 : x
  2. Step 2: Convert to fraction form
    11,340.57/15,664.95 = 9,458.31/x
  3. Step 3: Cross multiply
    11,340.57x = 15,664.95 × 9,458.31
  4. Step 4: Simplify right side
    11,340.57x = 148,163,953.23
  5. Step 5: Solve for x
    x = 148,163,953.23/11,340.57
  6. Step 6: Final answer
    x = 13,064.95

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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.