Home / 9,701.12-13,386.56-5,509.12

Finding the Fourth Proportional to 9,701.12, 13,386.56 and 5,509.12

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Solution

The fourth proportional to 9,701.12, 13,386.56 and 5,509.12 is: 7,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.12 : 13,386.56 = 5,509.12 : x
  2. Step 2: Convert to fraction form
    9,701.12/13,386.56 = 5,509.12/x
  3. Step 3: Cross multiply
    9,701.12x = 13,386.56 × 5,509.12
  4. Step 4: Simplify right side
    9,701.12x = 73,748,165.43
  5. Step 5: Solve for x
    x = 73,748,165.43/9,701.12
  6. Step 6: Final answer
    x = 7,602.03

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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.