Home / 8,790.24-12,130.54-4,811.37

Finding the Fourth Proportional to 8,790.24, 12,130.54 and 4,811.37

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Solution

The fourth proportional to 8,790.24, 12,130.54 and 4,811.37 is: 6,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.24 : 12,130.54 = 4,811.37 : x
  2. Step 2: Convert to fraction form
    8,790.24/12,130.54 = 4,811.37/x
  3. Step 3: Cross multiply
    8,790.24x = 12,130.54 × 4,811.37
  4. Step 4: Simplify right side
    8,790.24x = 58,364,522.51
  5. Step 5: Solve for x
    x = 58,364,522.51/8,790.24
  6. Step 6: Final answer
    x = 6,639.70

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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.