Home / 12,875.80-19,313.70-4,565.20

Finding the Fourth Proportional to 12,875.80, 19,313.70 and 4,565.20

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Solution

The fourth proportional to 12,875.80, 19,313.70 and 4,565.20 is: 6,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.80 : 19,313.70 = 4,565.20 : x
  2. Step 2: Convert to fraction form
    12,875.80/19,313.70 = 4,565.20/x
  3. Step 3: Cross multiply
    12,875.80x = 19,313.70 × 4,565.20
  4. Step 4: Simplify right side
    12,875.80x = 88,170,903.24
  5. Step 5: Solve for x
    x = 88,170,903.24/12,875.80
  6. Step 6: Final answer
    x = 6,847.80

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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.