Home / 12,177.89-16,802.56-7,397.70

Finding the Fourth Proportional to 12,177.89, 16,802.56 and 7,397.70

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Solution

The fourth proportional to 12,177.89, 16,802.56 and 7,397.70 is: 10,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.89 : 16,802.56 = 7,397.70 : x
  2. Step 2: Convert to fraction form
    12,177.89/16,802.56 = 7,397.70/x
  3. Step 3: Cross multiply
    12,177.89x = 16,802.56 × 7,397.70
  4. Step 4: Simplify right side
    12,177.89x = 124,300,298.11
  5. Step 5: Solve for x
    x = 124,300,298.11/12,177.89
  6. Step 6: Final answer
    x = 10,207.05

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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.