Home / 13,068.80-18,035.13-7,100.58

Finding the Fourth Proportional to 13,068.80, 18,035.13 and 7,100.58

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Solution

The fourth proportional to 13,068.80, 18,035.13 and 7,100.58 is: 9,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068.80 : 18,035.13 = 7,100.58 : x
  2. Step 2: Convert to fraction form
    13,068.80/18,035.13 = 7,100.58/x
  3. Step 3: Cross multiply
    13,068.80x = 18,035.13 × 7,100.58
  4. Step 4: Simplify right side
    13,068.80x = 128,059,883.38
  5. Step 5: Solve for x
    x = 128,059,883.38/13,068.80
  6. Step 6: Final answer
    x = 9,798.91

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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.