Home / 14,779.32-20,395.98-8,490.52

Finding the Fourth Proportional to 14,779.32, 20,395.98 and 8,490.52

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Solution

The fourth proportional to 14,779.32, 20,395.98 and 8,490.52 is: 11,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.32 : 20,395.98 = 8,490.52 : x
  2. Step 2: Convert to fraction form
    14,779.32/20,395.98 = 8,490.52/x
  3. Step 3: Cross multiply
    14,779.32x = 20,395.98 × 8,490.52
  4. Step 4: Simplify right side
    14,779.32x = 173,172,476.11
  5. Step 5: Solve for x
    x = 173,172,476.11/14,779.32
  6. Step 6: Final answer
    x = 11,717.22

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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.