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Finding the Fourth Proportional to 15,045.90, 22,590.45 and 8,484.90

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Solution

The fourth proportional to 15,045.90, 22,590.45 and 8,484.90 is: 12,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.90 : 22,590.45 = 8,484.90 : x
  2. Step 2: Convert to fraction form
    15,045.90/22,590.45 = 8,484.90/x
  3. Step 3: Cross multiply
    15,045.90x = 22,590.45 × 8,484.90
  4. Step 4: Simplify right side
    15,045.90x = 191,677,709.21
  5. Step 5: Solve for x
    x = 191,677,709.21/15,045.90
  6. Step 6: Final answer
    x = 12,739.53

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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.