Home / 8,687.30-13,031.54-4,303.58

Finding the Fourth Proportional to 8,687.30, 13,031.54 and 4,303.58

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Solution

The fourth proportional to 8,687.30, 13,031.54 and 4,303.58 is: 6,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.30 : 13,031.54 = 4,303.58 : x
  2. Step 2: Convert to fraction form
    8,687.30/13,031.54 = 4,303.58/x
  3. Step 3: Cross multiply
    8,687.30x = 13,031.54 × 4,303.58
  4. Step 4: Simplify right side
    8,687.30x = 56,082,188.24
  5. Step 5: Solve for x
    x = 56,082,188.24/8,687.30
  6. Step 6: Final answer
    x = 6,455.66

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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.