Home / 18,710.58-28,045.78-9,332.07

Finding the Fourth Proportional to 18,710.58, 28,045.78 and 9,332.07

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Solution

The fourth proportional to 18,710.58, 28,045.78 and 9,332.07 is: 13,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.58 : 28,045.78 = 9,332.07 : x
  2. Step 2: Convert to fraction form
    18,710.58/28,045.78 = 9,332.07/x
  3. Step 3: Cross multiply
    18,710.58x = 28,045.78 × 9,332.07
  4. Step 4: Simplify right side
    18,710.58x = 261,724,995.28
  5. Step 5: Solve for x
    x = 261,724,995.28/18,710.58
  6. Step 6: Final answer
    x = 13,988.08

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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.