Home / 15,595.71-21,521.57-9,856.23

Finding the Fourth Proportional to 15,595.71, 21,521.57 and 9,856.23

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Solution

The fourth proportional to 15,595.71, 21,521.57 and 9,856.23 is: 13,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.71 : 21,521.57 = 9,856.23 : x
  2. Step 2: Convert to fraction form
    15,595.71/21,521.57 = 9,856.23/x
  3. Step 3: Cross multiply
    15,595.71x = 21,521.57 × 9,856.23
  4. Step 4: Simplify right side
    15,595.71x = 212,121,543.88
  5. Step 5: Solve for x
    x = 212,121,543.88/15,595.71
  6. Step 6: Final answer
    x = 13,601.28

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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.