Home / 7,127.24-10,681.45-5,159.45

Finding the Fourth Proportional to 7,127.24, 10,681.45 and 5,159.45

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Solution

The fourth proportional to 7,127.24, 10,681.45 and 5,159.45 is: 7,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.24 : 10,681.45 = 5,159.45 : x
  2. Step 2: Convert to fraction form
    7,127.24/10,681.45 = 5,159.45/x
  3. Step 3: Cross multiply
    7,127.24x = 10,681.45 × 5,159.45
  4. Step 4: Simplify right side
    7,127.24x = 55,110,421.01
  5. Step 5: Solve for x
    x = 55,110,421.01/7,127.24
  6. Step 6: Final answer
    x = 7,732.36

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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.