Home / 14,280.78-21,402.27-10,345.26

Finding the Fourth Proportional to 14,280.78, 21,402.27 and 10,345.26

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Solution

The fourth proportional to 14,280.78, 21,402.27 and 10,345.26 is: 15,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.78 : 21,402.27 = 10,345.26 : x
  2. Step 2: Convert to fraction form
    14,280.78/21,402.27 = 10,345.26/x
  3. Step 3: Cross multiply
    14,280.78x = 21,402.27 × 10,345.26
  4. Step 4: Simplify right side
    14,280.78x = 221,412,047.74
  5. Step 5: Solve for x
    x = 221,412,047.74/14,280.78
  6. Step 6: Final answer
    x = 15,504.20

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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.