Home / 10,381.02-15,570.32-2,885.15

Finding the Fourth Proportional to 10,381.02, 15,570.32 and 2,885.15

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Solution

The fourth proportional to 10,381.02, 15,570.32 and 2,885.15 is: 4,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.02 : 15,570.32 = 2,885.15 : x
  2. Step 2: Convert to fraction form
    10,381.02/15,570.32 = 2,885.15/x
  3. Step 3: Cross multiply
    10,381.02x = 15,570.32 × 2,885.15
  4. Step 4: Simplify right side
    10,381.02x = 44,922,616.47
  5. Step 5: Solve for x
    x = 44,922,616.47/10,381.02
  6. Step 6: Final answer
    x = 4,327.38

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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.