Home / 14,784.81-20,402.48-8,070.29

Finding the Fourth Proportional to 14,784.81, 20,402.48 and 8,070.29

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Solution

The fourth proportional to 14,784.81, 20,402.48 and 8,070.29 is: 11,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.81 : 20,402.48 = 8,070.29 : x
  2. Step 2: Convert to fraction form
    14,784.81/20,402.48 = 8,070.29/x
  3. Step 3: Cross multiply
    14,784.81x = 20,402.48 × 8,070.29
  4. Step 4: Simplify right side
    14,784.81x = 164,653,787.96
  5. Step 5: Solve for x
    x = 164,653,787.96/14,784.81
  6. Step 6: Final answer
    x = 11,136.69

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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.