Home / 13,606.60-18,779.16-8,304.50

Finding the Fourth Proportional to 13,606.60, 18,779.16 and 8,304.50

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Solution

The fourth proportional to 13,606.60, 18,779.16 and 8,304.50 is: 11,461.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.60 : 18,779.16 = 8,304.50 : x
  2. Step 2: Convert to fraction form
    13,606.60/18,779.16 = 8,304.50/x
  3. Step 3: Cross multiply
    13,606.60x = 18,779.16 × 8,304.50
  4. Step 4: Simplify right side
    13,606.60x = 155,951,440.32
  5. Step 5: Solve for x
    x = 155,951,440.32/13,606.60
  6. Step 6: Final answer
    x = 11,461.46

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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.