Home / 15,477.60-23,210.96-5,615.20

Finding the Fourth Proportional to 15,477.60, 23,210.96 and 5,615.20

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Solution

The fourth proportional to 15,477.60, 23,210.96 and 5,615.20 is: 8,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.60 : 23,210.96 = 5,615.20 : x
  2. Step 2: Convert to fraction form
    15,477.60/23,210.96 = 5,615.20/x
  3. Step 3: Cross multiply
    15,477.60x = 23,210.96 × 5,615.20
  4. Step 4: Simplify right side
    15,477.60x = 130,334,182.59
  5. Step 5: Solve for x
    x = 130,334,182.59/15,477.60
  6. Step 6: Final answer
    x = 8,420.83

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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.