Home / 15,875.79-23,811.86-4,189.92

Finding the Fourth Proportional to 15,875.79, 23,811.86 and 4,189.92

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Solution

The fourth proportional to 15,875.79, 23,811.86 and 4,189.92 is: 6,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.79 : 23,811.86 = 4,189.92 : x
  2. Step 2: Convert to fraction form
    15,875.79/23,811.86 = 4,189.92/x
  3. Step 3: Cross multiply
    15,875.79x = 23,811.86 × 4,189.92
  4. Step 4: Simplify right side
    15,875.79x = 99,769,767.50
  5. Step 5: Solve for x
    x = 99,769,767.50/15,875.79
  6. Step 6: Final answer
    x = 6,284.40

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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.