Home / 18,455.23-27,681.87-5,307.08

Finding the Fourth Proportional to 18,455.23, 27,681.87 and 5,307.08

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Solution

The fourth proportional to 18,455.23, 27,681.87 and 5,307.08 is: 7,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.23 : 27,681.87 = 5,307.08 : x
  2. Step 2: Convert to fraction form
    18,455.23/27,681.87 = 5,307.08/x
  3. Step 3: Cross multiply
    18,455.23x = 27,681.87 × 5,307.08
  4. Step 4: Simplify right side
    18,455.23x = 146,909,898.64
  5. Step 5: Solve for x
    x = 146,909,898.64/18,455.23
  6. Step 6: Final answer
    x = 7,960.34

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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.