Home / 19,819.61-27,350.02-11,320.07

Finding the Fourth Proportional to 19,819.61, 27,350.02 and 11,320.07

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Solution

The fourth proportional to 19,819.61, 27,350.02 and 11,320.07 is: 15,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.61 : 27,350.02 = 11,320.07 : x
  2. Step 2: Convert to fraction form
    19,819.61/27,350.02 = 11,320.07/x
  3. Step 3: Cross multiply
    19,819.61x = 27,350.02 × 11,320.07
  4. Step 4: Simplify right side
    19,819.61x = 309,604,140.90
  5. Step 5: Solve for x
    x = 309,604,140.90/19,819.61
  6. Step 6: Final answer
    x = 15,621.10

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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.