Home / 12,437.14-17,164.47-9,287.86

Finding the Fourth Proportional to 12,437.14, 17,164.47 and 9,287.86

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Solution

The fourth proportional to 12,437.14, 17,164.47 and 9,287.86 is: 12,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.14 : 17,164.47 = 9,287.86 : x
  2. Step 2: Convert to fraction form
    12,437.14/17,164.47 = 9,287.86/x
  3. Step 3: Cross multiply
    12,437.14x = 17,164.47 × 9,287.86
  4. Step 4: Simplify right side
    12,437.14x = 159,421,214.03
  5. Step 5: Solve for x
    x = 159,421,214.03/12,437.14
  6. Step 6: Final answer
    x = 12,818.15

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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.