Home / 10,415.18-14,368.38-6,221

Finding the Fourth Proportional to 10,415.18, 14,368.38 and 6,221

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Solution

The fourth proportional to 10,415.18, 14,368.38 and 6,221 is: 8,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.18 : 14,368.38 = 6,221 : x
  2. Step 2: Convert to fraction form
    10,415.18/14,368.38 = 6,221/x
  3. Step 3: Cross multiply
    10,415.18x = 14,368.38 × 6,221
  4. Step 4: Simplify right side
    10,415.18x = 89,385,691.98
  5. Step 5: Solve for x
    x = 89,385,691.98/10,415.18
  6. Step 6: Final answer
    x = 8,582.25

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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.