Home / 15,415.80-23,123.70-10,458.60

Finding the Fourth Proportional to 15,415.80, 23,123.70 and 10,458.60

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Solution

The fourth proportional to 15,415.80, 23,123.70 and 10,458.60 is: 15,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.80 : 23,123.70 = 10,458.60 : x
  2. Step 2: Convert to fraction form
    15,415.80/23,123.70 = 10,458.60/x
  3. Step 3: Cross multiply
    15,415.80x = 23,123.70 × 10,458.60
  4. Step 4: Simplify right side
    15,415.80x = 241,841,528.82
  5. Step 5: Solve for x
    x = 241,841,528.82/15,415.80
  6. Step 6: Final answer
    x = 15,687.90

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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.