Home / 7,775.27-10,721.40-5,253.01

Finding the Fourth Proportional to 7,775.27, 10,721.40 and 5,253.01

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Solution

The fourth proportional to 7,775.27, 10,721.40 and 5,253.01 is: 7,243.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.27 : 10,721.40 = 5,253.01 : x
  2. Step 2: Convert to fraction form
    7,775.27/10,721.40 = 5,253.01/x
  3. Step 3: Cross multiply
    7,775.27x = 10,721.40 × 5,253.01
  4. Step 4: Simplify right side
    7,775.27x = 56,319,621.41
  5. Step 5: Solve for x
    x = 56,319,621.41/7,775.27
  6. Step 6: Final answer
    x = 7,243.43

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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.