Home / 10,135.93-15,180.37-9,785.51

Finding the Fourth Proportional to 10,135.93, 15,180.37 and 9,785.51

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Solution

The fourth proportional to 10,135.93, 15,180.37 and 9,785.51 is: 14,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.93 : 15,180.37 = 9,785.51 : x
  2. Step 2: Convert to fraction form
    10,135.93/15,180.37 = 9,785.51/x
  3. Step 3: Cross multiply
    10,135.93x = 15,180.37 × 9,785.51
  4. Step 4: Simplify right side
    10,135.93x = 148,547,662.44
  5. Step 5: Solve for x
    x = 148,547,662.44/10,135.93
  6. Step 6: Final answer
    x = 14,655.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.