Home / 15,415.60-23,126.40-5,555.68

Finding the Fourth Proportional to 15,415.60, 23,126.40 and 5,555.68

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Solution

The fourth proportional to 15,415.60, 23,126.40 and 5,555.68 is: 8,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.60 : 23,126.40 = 5,555.68 : x
  2. Step 2: Convert to fraction form
    15,415.60/23,126.40 = 5,555.68/x
  3. Step 3: Cross multiply
    15,415.60x = 23,126.40 × 5,555.68
  4. Step 4: Simplify right side
    15,415.60x = 128,482,877.95
  5. Step 5: Solve for x
    x = 128,482,877.95/15,415.60
  6. Step 6: Final answer
    x = 8,334.60

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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.