Home / 10,015.95-15,022.77-2,621.12

Finding the Fourth Proportional to 10,015.95, 15,022.77 and 2,621.12

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Solution

The fourth proportional to 10,015.95, 15,022.77 and 2,621.12 is: 3,931.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.95 : 15,022.77 = 2,621.12 : x
  2. Step 2: Convert to fraction form
    10,015.95/15,022.77 = 2,621.12/x
  3. Step 3: Cross multiply
    10,015.95x = 15,022.77 × 2,621.12
  4. Step 4: Simplify right side
    10,015.95x = 39,376,482.90
  5. Step 5: Solve for x
    x = 39,376,482.90/10,015.95
  6. Step 6: Final answer
    x = 3,931.38

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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.