Home / 14,608.48-20,159.76-8,320.72

Finding the Fourth Proportional to 14,608.48, 20,159.76 and 8,320.72

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Solution

The fourth proportional to 14,608.48, 20,159.76 and 8,320.72 is: 11,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.48 : 20,159.76 = 8,320.72 : x
  2. Step 2: Convert to fraction form
    14,608.48/20,159.76 = 8,320.72/x
  3. Step 3: Cross multiply
    14,608.48x = 20,159.76 × 8,320.72
  4. Step 4: Simplify right side
    14,608.48x = 167,743,718.23
  5. Step 5: Solve for x
    x = 167,743,718.23/14,608.48
  6. Step 6: Final answer
    x = 11,482.63

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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.