Home / 15,016.12-20,723.72-8,303.32

Finding the Fourth Proportional to 15,016.12, 20,723.72 and 8,303.32

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Solution

The fourth proportional to 15,016.12, 20,723.72 and 8,303.32 is: 11,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.12 : 20,723.72 = 8,303.32 : x
  2. Step 2: Convert to fraction form
    15,016.12/20,723.72 = 8,303.32/x
  3. Step 3: Cross multiply
    15,016.12x = 20,723.72 × 8,303.32
  4. Step 4: Simplify right side
    15,016.12x = 172,075,678.75
  5. Step 5: Solve for x
    x = 172,075,678.75/15,016.12
  6. Step 6: Final answer
    x = 11,459.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.