Home / 14,442.76-19,923.62-9,415.40

Finding the Fourth Proportional to 14,442.76, 19,923.62 and 9,415.40

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Solution

The fourth proportional to 14,442.76, 19,923.62 and 9,415.40 is: 12,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.76 : 19,923.62 = 9,415.40 : x
  2. Step 2: Convert to fraction form
    14,442.76/19,923.62 = 9,415.40/x
  3. Step 3: Cross multiply
    14,442.76x = 19,923.62 × 9,415.40
  4. Step 4: Simplify right side
    14,442.76x = 187,588,851.75
  5. Step 5: Solve for x
    x = 187,588,851.75/14,442.76
  6. Step 6: Final answer
    x = 12,988.44

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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.