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Finding the Fourth Proportional to 9,703.52, 13,390.84 and 5,287.52

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Solution

The fourth proportional to 9,703.52, 13,390.84 and 5,287.52 is: 7,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.52 : 13,390.84 = 5,287.52 : x
  2. Step 2: Convert to fraction form
    9,703.52/13,390.84 = 5,287.52/x
  3. Step 3: Cross multiply
    9,703.52x = 13,390.84 × 5,287.52
  4. Step 4: Simplify right side
    9,703.52x = 70,804,334.32
  5. Step 5: Solve for x
    x = 70,804,334.32/9,703.52
  6. Step 6: Final answer
    x = 7,296.77

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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.