Home / 10,275.34-15,389.65-8,040.25

Finding the Fourth Proportional to 10,275.34, 15,389.65 and 8,040.25

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Solution

The fourth proportional to 10,275.34, 15,389.65 and 8,040.25 is: 12,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.34 : 15,389.65 = 8,040.25 : x
  2. Step 2: Convert to fraction form
    10,275.34/15,389.65 = 8,040.25/x
  3. Step 3: Cross multiply
    10,275.34x = 15,389.65 × 8,040.25
  4. Step 4: Simplify right side
    10,275.34x = 123,736,633.41
  5. Step 5: Solve for x
    x = 123,736,633.41/10,275.34
  6. Step 6: Final answer
    x = 12,042.10

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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.