Home / 15,765.60-23,599.80-9,172.20

Finding the Fourth Proportional to 15,765.60, 23,599.80 and 9,172.20

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Solution

The fourth proportional to 15,765.60, 23,599.80 and 9,172.20 is: 13,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.60 : 23,599.80 = 9,172.20 : x
  2. Step 2: Convert to fraction form
    15,765.60/23,599.80 = 9,172.20/x
  3. Step 3: Cross multiply
    15,765.60x = 23,599.80 × 9,172.20
  4. Step 4: Simplify right side
    15,765.60x = 216,462,085.56
  5. Step 5: Solve for x
    x = 216,462,085.56/15,765.60
  6. Step 6: Final answer
    x = 13,730.03

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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.