Home / 13,578.59-20,355.10-7,003.01

Finding the Fourth Proportional to 13,578.59, 20,355.10 and 7,003.01

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Solution

The fourth proportional to 13,578.59, 20,355.10 and 7,003.01 is: 10,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.59 : 20,355.10 = 7,003.01 : x
  2. Step 2: Convert to fraction form
    13,578.59/20,355.10 = 7,003.01/x
  3. Step 3: Cross multiply
    13,578.59x = 20,355.10 × 7,003.01
  4. Step 4: Simplify right side
    13,578.59x = 142,547,002.23
  5. Step 5: Solve for x
    x = 142,547,002.23/13,578.59
  6. Step 6: Final answer
    x = 10,497.92

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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.