Home / 8,721.15-12,035.06-4,742.16

Finding the Fourth Proportional to 8,721.15, 12,035.06 and 4,742.16

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Solution

The fourth proportional to 8,721.15, 12,035.06 and 4,742.16 is: 6,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.15 : 12,035.06 = 4,742.16 : x
  2. Step 2: Convert to fraction form
    8,721.15/12,035.06 = 4,742.16/x
  3. Step 3: Cross multiply
    8,721.15x = 12,035.06 × 4,742.16
  4. Step 4: Simplify right side
    8,721.15x = 57,072,156.42
  5. Step 5: Solve for x
    x = 57,072,156.42/8,721.15
  6. Step 6: Final answer
    x = 6,544.11

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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.