Home / 8,708.12-12,017.08-4,729.20

Finding the Fourth Proportional to 8,708.12, 12,017.08 and 4,729.20

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Solution

The fourth proportional to 8,708.12, 12,017.08 and 4,729.20 is: 6,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.12 : 12,017.08 = 4,729.20 : x
  2. Step 2: Convert to fraction form
    8,708.12/12,017.08 = 4,729.20/x
  3. Step 3: Cross multiply
    8,708.12x = 12,017.08 × 4,729.20
  4. Step 4: Simplify right side
    8,708.12x = 56,831,174.74
  5. Step 5: Solve for x
    x = 56,831,174.74/8,708.12
  6. Step 6: Final answer
    x = 6,526.23

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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.