Home / 10,072.12-13,898.80-5,595.64

Finding the Fourth Proportional to 10,072.12, 13,898.80 and 5,595.64

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Solution

The fourth proportional to 10,072.12, 13,898.80 and 5,595.64 is: 7,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.12 : 13,898.80 = 5,595.64 : x
  2. Step 2: Convert to fraction form
    10,072.12/13,898.80 = 5,595.64/x
  3. Step 3: Cross multiply
    10,072.12x = 13,898.80 × 5,595.64
  4. Step 4: Simplify right side
    10,072.12x = 77,772,681.23
  5. Step 5: Solve for x
    x = 77,772,681.23/10,072.12
  6. Step 6: Final answer
    x = 7,721.58

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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.