Home / 9,901.10-13,663.59-5,425.04

Finding the Fourth Proportional to 9,901.10, 13,663.59 and 5,425.04

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Solution

The fourth proportional to 9,901.10, 13,663.59 and 5,425.04 is: 7,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.10 : 13,663.59 = 5,425.04 : x
  2. Step 2: Convert to fraction form
    9,901.10/13,663.59 = 5,425.04/x
  3. Step 3: Cross multiply
    9,901.10x = 13,663.59 × 5,425.04
  4. Step 4: Simplify right side
    9,901.10x = 74,125,536.11
  5. Step 5: Solve for x
    x = 74,125,536.11/9,901.10
  6. Step 6: Final answer
    x = 7,486.59

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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.