Home / 10,015.12-15,024.30-4,172.32

Finding the Fourth Proportional to 10,015.12, 15,024.30 and 4,172.32

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Solution

The fourth proportional to 10,015.12, 15,024.30 and 4,172.32 is: 6,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.12 : 15,024.30 = 4,172.32 : x
  2. Step 2: Convert to fraction form
    10,015.12/15,024.30 = 4,172.32/x
  3. Step 3: Cross multiply
    10,015.12x = 15,024.30 × 4,172.32
  4. Step 4: Simplify right side
    10,015.12x = 62,686,187.38
  5. Step 5: Solve for x
    x = 62,686,187.38/10,015.12
  6. Step 6: Final answer
    x = 6,259.15

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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.