Home / 15,292.96-21,095.34-9,618.76

Finding the Fourth Proportional to 15,292.96, 21,095.34 and 9,618.76

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Solution

The fourth proportional to 15,292.96, 21,095.34 and 9,618.76 is: 13,268.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.96 : 21,095.34 = 9,618.76 : x
  2. Step 2: Convert to fraction form
    15,292.96/21,095.34 = 9,618.76/x
  3. Step 3: Cross multiply
    15,292.96x = 21,095.34 × 9,618.76
  4. Step 4: Simplify right side
    15,292.96x = 202,911,012.58
  5. Step 5: Solve for x
    x = 202,911,012.58/15,292.96
  6. Step 6: Final answer
    x = 13,268.26

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Half scale
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Double scale
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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.