Home / 15,470.16-21,347.19-8,754.72

Finding the Fourth Proportional to 15,470.16, 21,347.19 and 8,754.72

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Solution

The fourth proportional to 15,470.16, 21,347.19 and 8,754.72 is: 12,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.16 : 21,347.19 = 8,754.72 : x
  2. Step 2: Convert to fraction form
    15,470.16/21,347.19 = 8,754.72/x
  3. Step 3: Cross multiply
    15,470.16x = 21,347.19 × 8,754.72
  4. Step 4: Simplify right side
    15,470.16x = 186,888,671.24
  5. Step 5: Solve for x
    x = 186,888,671.24/15,470.16
  6. Step 6: Final answer
    x = 12,080.59

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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.