Home / 7,710.16-11,565.20-1,866.76

Finding the Fourth Proportional to 7,710.16, 11,565.20 and 1,866.76

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Solution

The fourth proportional to 7,710.16, 11,565.20 and 1,866.76 is: 2,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.16 : 11,565.20 = 1,866.76 : x
  2. Step 2: Convert to fraction form
    7,710.16/11,565.20 = 1,866.76/x
  3. Step 3: Cross multiply
    7,710.16x = 11,565.20 × 1,866.76
  4. Step 4: Simplify right side
    7,710.16x = 21,589,452.75
  5. Step 5: Solve for x
    x = 21,589,452.75/7,710.16
  6. Step 6: Final answer
    x = 2,800.13

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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.