Home / 10,619.64-15,897.51-7,280.82

Finding the Fourth Proportional to 10,619.64, 15,897.51 and 7,280.82

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Solution

The fourth proportional to 10,619.64, 15,897.51 and 7,280.82 is: 10,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.64 : 15,897.51 = 7,280.82 : x
  2. Step 2: Convert to fraction form
    10,619.64/15,897.51 = 7,280.82/x
  3. Step 3: Cross multiply
    10,619.64x = 15,897.51 × 7,280.82
  4. Step 4: Simplify right side
    10,619.64x = 115,746,908.76
  5. Step 5: Solve for x
    x = 115,746,908.76/10,619.64
  6. Step 6: Final answer
    x = 10,899.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.