Home / 10,005.32-15,010.41-2,985.05

Finding the Fourth Proportional to 10,005.32, 15,010.41 and 2,985.05

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Solution

The fourth proportional to 10,005.32, 15,010.41 and 2,985.05 is: 4,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.32 : 15,010.41 = 2,985.05 : x
  2. Step 2: Convert to fraction form
    10,005.32/15,010.41 = 2,985.05/x
  3. Step 3: Cross multiply
    10,005.32x = 15,010.41 × 2,985.05
  4. Step 4: Simplify right side
    10,005.32x = 44,806,873.09
  5. Step 5: Solve for x
    x = 44,806,873.09/10,005.32
  6. Step 6: Final answer
    x = 4,478.30

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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.