Home / 14,687.47-20,263.70-9,385.34

Finding the Fourth Proportional to 14,687.47, 20,263.70 and 9,385.34

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Solution

The fourth proportional to 14,687.47, 20,263.70 and 9,385.34 is: 12,948.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.47 : 20,263.70 = 9,385.34 : x
  2. Step 2: Convert to fraction form
    14,687.47/20,263.70 = 9,385.34/x
  3. Step 3: Cross multiply
    14,687.47x = 20,263.70 × 9,385.34
  4. Step 4: Simplify right side
    14,687.47x = 190,181,667.23
  5. Step 5: Solve for x
    x = 190,181,667.23/14,687.47
  6. Step 6: Final answer
    x = 12,948.57

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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.