Home / 7,718.64-11,577.96-1,875.24

Finding the Fourth Proportional to 7,718.64, 11,577.96 and 1,875.24

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Solution

The fourth proportional to 7,718.64, 11,577.96 and 1,875.24 is: 2,812.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.64 : 11,577.96 = 1,875.24 : x
  2. Step 2: Convert to fraction form
    7,718.64/11,577.96 = 1,875.24/x
  3. Step 3: Cross multiply
    7,718.64x = 11,577.96 × 1,875.24
  4. Step 4: Simplify right side
    7,718.64x = 21,711,453.71
  5. Step 5: Solve for x
    x = 21,711,453.71/7,718.64
  6. Step 6: Final answer
    x = 2,812.86

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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.