Home / 15,275.06-21,077.44-8,560.16

Finding the Fourth Proportional to 15,275.06, 21,077.44 and 8,560.16

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Solution

The fourth proportional to 15,275.06, 21,077.44 and 8,560.16 is: 11,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.06 : 21,077.44 = 8,560.16 : x
  2. Step 2: Convert to fraction form
    15,275.06/21,077.44 = 8,560.16/x
  3. Step 3: Cross multiply
    15,275.06x = 21,077.44 × 8,560.16
  4. Step 4: Simplify right side
    15,275.06x = 180,426,132.00
  5. Step 5: Solve for x
    x = 180,426,132.00/15,275.06
  6. Step 6: Final answer
    x = 11,811.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.