Home / 8,709.13-12,018.40-4,730.16

Finding the Fourth Proportional to 8,709.13, 12,018.40 and 4,730.16

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Solution

The fourth proportional to 8,709.13, 12,018.40 and 4,730.16 is: 6,527.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.13 : 12,018.40 = 4,730.16 : x
  2. Step 2: Convert to fraction form
    8,709.13/12,018.40 = 4,730.16/x
  3. Step 3: Cross multiply
    8,709.13x = 12,018.40 × 4,730.16
  4. Step 4: Simplify right side
    8,709.13x = 56,848,954.94
  5. Step 5: Solve for x
    x = 56,848,954.94/8,709.13
  6. Step 6: Final answer
    x = 6,527.51

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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.