Home / 13,280.90-19,895.42-10,345.46

Finding the Fourth Proportional to 13,280.90, 19,895.42 and 10,345.46

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Solution

The fourth proportional to 13,280.90, 19,895.42 and 10,345.46 is: 15,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.90 : 19,895.42 = 10,345.46 : x
  2. Step 2: Convert to fraction form
    13,280.90/19,895.42 = 10,345.46/x
  3. Step 3: Cross multiply
    13,280.90x = 19,895.42 × 10,345.46
  4. Step 4: Simplify right side
    13,280.90x = 205,827,198.18
  5. Step 5: Solve for x
    x = 205,827,198.18/13,280.90
  6. Step 6: Final answer
    x = 15,497.99

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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.