Home / 8,726.99-13,077.72-5,430.06

Finding the Fourth Proportional to 8,726.99, 13,077.72 and 5,430.06

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Solution

The fourth proportional to 8,726.99, 13,077.72 and 5,430.06 is: 8,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.99 : 13,077.72 = 5,430.06 : x
  2. Step 2: Convert to fraction form
    8,726.99/13,077.72 = 5,430.06/x
  3. Step 3: Cross multiply
    8,726.99x = 13,077.72 × 5,430.06
  4. Step 4: Simplify right side
    8,726.99x = 71,012,804.26
  5. Step 5: Solve for x
    x = 71,012,804.26/8,726.99
  6. Step 6: Final answer
    x = 8,137.15

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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.