Home / 13,153.76-18,151.52-7,184.28

Finding the Fourth Proportional to 13,153.76, 18,151.52 and 7,184.28

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Solution

The fourth proportional to 13,153.76, 18,151.52 and 7,184.28 is: 9,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.76 : 18,151.52 = 7,184.28 : x
  2. Step 2: Convert to fraction form
    13,153.76/18,151.52 = 7,184.28/x
  3. Step 3: Cross multiply
    13,153.76x = 18,151.52 × 7,184.28
  4. Step 4: Simplify right side
    13,153.76x = 130,405,566.18
  5. Step 5: Solve for x
    x = 130,405,566.18/13,153.76
  6. Step 6: Final answer
    x = 9,913.94

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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.