Home / 14,784.70-20,402.74-8,070.37

Finding the Fourth Proportional to 14,784.70, 20,402.74 and 8,070.37

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Solution

The fourth proportional to 14,784.70, 20,402.74 and 8,070.37 is: 11,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.70 : 20,402.74 = 8,070.37 : x
  2. Step 2: Convert to fraction form
    14,784.70/20,402.74 = 8,070.37/x
  3. Step 3: Cross multiply
    14,784.70x = 20,402.74 × 8,070.37
  4. Step 4: Simplify right side
    14,784.70x = 164,657,660.81
  5. Step 5: Solve for x
    x = 164,657,660.81/14,784.70
  6. Step 6: Final answer
    x = 11,137.03

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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.