Home / 14,749.59-20,347.29-8,779.08

Finding the Fourth Proportional to 14,749.59, 20,347.29 and 8,779.08

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Solution

The fourth proportional to 14,749.59, 20,347.29 and 8,779.08 is: 12,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.59 : 20,347.29 = 8,779.08 : x
  2. Step 2: Convert to fraction form
    14,749.59/20,347.29 = 8,779.08/x
  3. Step 3: Cross multiply
    14,749.59x = 20,347.29 × 8,779.08
  4. Step 4: Simplify right side
    14,749.59x = 178,630,486.69
  5. Step 5: Solve for x
    x = 178,630,486.69/14,749.59
  6. Step 6: Final answer
    x = 12,110.88

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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.