Home / 10,152.60-14,003.65-6,620.59

Finding the Fourth Proportional to 10,152.60, 14,003.65 and 6,620.59

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Solution

The fourth proportional to 10,152.60, 14,003.65 and 6,620.59 is: 9,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.60 : 14,003.65 = 6,620.59 : x
  2. Step 2: Convert to fraction form
    10,152.60/14,003.65 = 6,620.59/x
  3. Step 3: Cross multiply
    10,152.60x = 14,003.65 × 6,620.59
  4. Step 4: Simplify right side
    10,152.60x = 92,712,425.15
  5. Step 5: Solve for x
    x = 92,712,425.15/10,152.60
  6. Step 6: Final answer
    x = 9,131.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.