Home / 14,871.48-20,516.59-10,147.56

Finding the Fourth Proportional to 14,871.48, 20,516.59 and 10,147.56

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Solution

The fourth proportional to 14,871.48, 20,516.59 and 10,147.56 is: 13,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.48 : 20,516.59 = 10,147.56 : x
  2. Step 2: Convert to fraction form
    14,871.48/20,516.59 = 10,147.56/x
  3. Step 3: Cross multiply
    14,871.48x = 20,516.59 × 10,147.56
  4. Step 4: Simplify right side
    14,871.48x = 208,193,328.02
  5. Step 5: Solve for x
    x = 208,193,328.02/14,871.48
  6. Step 6: Final answer
    x = 13,999.50

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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.