Home / 14,280.07-21,424.48-6,389.23

Finding the Fourth Proportional to 14,280.07, 21,424.48 and 6,389.23

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Solution

The fourth proportional to 14,280.07, 21,424.48 and 6,389.23 is: 9,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.07 : 21,424.48 = 6,389.23 : x
  2. Step 2: Convert to fraction form
    14,280.07/21,424.48 = 6,389.23/x
  3. Step 3: Cross multiply
    14,280.07x = 21,424.48 × 6,389.23
  4. Step 4: Simplify right side
    14,280.07x = 136,885,823.23
  5. Step 5: Solve for x
    x = 136,885,823.23/14,280.07
  6. Step 6: Final answer
    x = 9,585.79

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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.