Home / 14,572.80-20,106.24-8,985.60

Finding the Fourth Proportional to 14,572.80, 20,106.24 and 8,985.60

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Solution

The fourth proportional to 14,572.80, 20,106.24 and 8,985.60 is: 12,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.80 : 20,106.24 = 8,985.60 : x
  2. Step 2: Convert to fraction form
    14,572.80/20,106.24 = 8,985.60/x
  3. Step 3: Cross multiply
    14,572.80x = 20,106.24 × 8,985.60
  4. Step 4: Simplify right side
    14,572.80x = 180,666,630.14
  5. Step 5: Solve for x
    x = 180,666,630.14/14,572.80
  6. Step 6: Final answer
    x = 12,397.52

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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.