Home / 14,979.12-20,671.74-8,265

Finding the Fourth Proportional to 14,979.12, 20,671.74 and 8,265

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Solution

The fourth proportional to 14,979.12, 20,671.74 and 8,265 is: 11,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.12 : 20,671.74 = 8,265 : x
  2. Step 2: Convert to fraction form
    14,979.12/20,671.74 = 8,265/x
  3. Step 3: Cross multiply
    14,979.12x = 20,671.74 × 8,265
  4. Step 4: Simplify right side
    14,979.12x = 170,851,931.10
  5. Step 5: Solve for x
    x = 170,851,931.10/14,979.12
  6. Step 6: Final answer
    x = 11,406.01

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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.