Home / 13,681.07-20,521.80-9,030.86

Finding the Fourth Proportional to 13,681.07, 20,521.80 and 9,030.86

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Solution

The fourth proportional to 13,681.07, 20,521.80 and 9,030.86 is: 13,546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681.07 : 20,521.80 = 9,030.86 : x
  2. Step 2: Convert to fraction form
    13,681.07/20,521.80 = 9,030.86/x
  3. Step 3: Cross multiply
    13,681.07x = 20,521.80 × 9,030.86
  4. Step 4: Simplify right side
    13,681.07x = 185,329,400.14
  5. Step 5: Solve for x
    x = 185,329,400.14/13,681.07
  6. Step 6: Final answer
    x = 13,546.42

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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.