Home / 10,260.81-15,389.29-6,389.13

Finding the Fourth Proportional to 10,260.81, 15,389.29 and 6,389.13

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Solution

The fourth proportional to 10,260.81, 15,389.29 and 6,389.13 is: 9,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.81 : 15,389.29 = 6,389.13 : x
  2. Step 2: Convert to fraction form
    10,260.81/15,389.29 = 6,389.13/x
  3. Step 3: Cross multiply
    10,260.81x = 15,389.29 × 6,389.13
  4. Step 4: Simplify right side
    10,260.81x = 98,324,174.42
  5. Step 5: Solve for x
    x = 98,324,174.42/10,260.81
  6. Step 6: Final answer
    x = 9,582.50

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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.