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Finding the Fourth Proportional to 15,365.80, 23,041.12 and 4,976.20

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Solution

The fourth proportional to 15,365.80, 23,041.12 and 4,976.20 is: 7,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.80 : 23,041.12 = 4,976.20 : x
  2. Step 2: Convert to fraction form
    15,365.80/23,041.12 = 4,976.20/x
  3. Step 3: Cross multiply
    15,365.80x = 23,041.12 × 4,976.20
  4. Step 4: Simplify right side
    15,365.80x = 114,657,221.34
  5. Step 5: Solve for x
    x = 114,657,221.34/15,365.80
  6. Step 6: Final answer
    x = 7,461.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.