Home / 15,703.60-23,555.40-9,137.20

Finding the Fourth Proportional to 15,703.60, 23,555.40 and 9,137.20

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Solution

The fourth proportional to 15,703.60, 23,555.40 and 9,137.20 is: 13,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.60 : 23,555.40 = 9,137.20 : x
  2. Step 2: Convert to fraction form
    15,703.60/23,555.40 = 9,137.20/x
  3. Step 3: Cross multiply
    15,703.60x = 23,555.40 × 9,137.20
  4. Step 4: Simplify right side
    15,703.60x = 215,230,400.88
  5. Step 5: Solve for x
    x = 215,230,400.88/15,703.60
  6. Step 6: Final answer
    x = 13,705.80

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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.