Home / 7,718.10-11,577.15-1,874.67

Finding the Fourth Proportional to 7,718.10, 11,577.15 and 1,874.67

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Solution

The fourth proportional to 7,718.10, 11,577.15 and 1,874.67 is: 2,812.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.10 : 11,577.15 = 1,874.67 : x
  2. Step 2: Convert to fraction form
    7,718.10/11,577.15 = 1,874.67/x
  3. Step 3: Cross multiply
    7,718.10x = 11,577.15 × 1,874.67
  4. Step 4: Simplify right side
    7,718.10x = 21,703,326.42
  5. Step 5: Solve for x
    x = 21,703,326.42/7,718.10
  6. Step 6: Final answer
    x = 2,812.00

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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.