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Finding the Fourth Proportional to 14,779.30, 22,165.05 and 7,378.30

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Solution

The fourth proportional to 14,779.30, 22,165.05 and 7,378.30 is: 11,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.30 : 22,165.05 = 7,378.30 : x
  2. Step 2: Convert to fraction form
    14,779.30/22,165.05 = 7,378.30/x
  3. Step 3: Cross multiply
    14,779.30x = 22,165.05 × 7,378.30
  4. Step 4: Simplify right side
    14,779.30x = 163,540,388.42
  5. Step 5: Solve for x
    x = 163,540,388.42/14,779.30
  6. Step 6: Final answer
    x = 11,065.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.