Home / 8,723.90-12,036.03-5,742.74

Finding the Fourth Proportional to 8,723.90, 12,036.03 and 5,742.74

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Solution

The fourth proportional to 8,723.90, 12,036.03 and 5,742.74 is: 7,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.90 : 12,036.03 = 5,742.74 : x
  2. Step 2: Convert to fraction form
    8,723.90/12,036.03 = 5,742.74/x
  3. Step 3: Cross multiply
    8,723.90x = 12,036.03 × 5,742.74
  4. Step 4: Simplify right side
    8,723.90x = 69,119,762.21
  5. Step 5: Solve for x
    x = 69,119,762.21/8,723.90
  6. Step 6: Final answer
    x = 7,923.04

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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.