Home / 14,779.59-20,395.02-8,405.32

Finding the Fourth Proportional to 14,779.59, 20,395.02 and 8,405.32

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Solution

The fourth proportional to 14,779.59, 20,395.02 and 8,405.32 is: 11,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.59 : 20,395.02 = 8,405.32 : x
  2. Step 2: Convert to fraction form
    14,779.59/20,395.02 = 8,405.32/x
  3. Step 3: Cross multiply
    14,779.59x = 20,395.02 × 8,405.32
  4. Step 4: Simplify right side
    14,779.59x = 171,426,617.36
  5. Step 5: Solve for x
    x = 171,426,617.36/14,779.59
  6. Step 6: Final answer
    x = 11,598.88

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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.