Home / 7,875.08-11,812.58-2,031.68

Finding the Fourth Proportional to 7,875.08, 11,812.58 and 2,031.68

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Solution

The fourth proportional to 7,875.08, 11,812.58 and 2,031.68 is: 3,047.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.08 : 11,812.58 = 2,031.68 : x
  2. Step 2: Convert to fraction form
    7,875.08/11,812.58 = 2,031.68/x
  3. Step 3: Cross multiply
    7,875.08x = 11,812.58 × 2,031.68
  4. Step 4: Simplify right side
    7,875.08x = 23,999,382.53
  5. Step 5: Solve for x
    x = 23,999,382.53/7,875.08
  6. Step 6: Final answer
    x = 3,047.51

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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.