Home / 19,170.12-26,453.34-10,785

Finding the Fourth Proportional to 19,170.12, 26,453.34 and 10,785

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Solution

The fourth proportional to 19,170.12, 26,453.34 and 10,785 is: 14,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.12 : 26,453.34 = 10,785 : x
  2. Step 2: Convert to fraction form
    19,170.12/26,453.34 = 10,785/x
  3. Step 3: Cross multiply
    19,170.12x = 26,453.34 × 10,785
  4. Step 4: Simplify right side
    19,170.12x = 285,299,271.90
  5. Step 5: Solve for x
    x = 285,299,271.90/19,170.12
  6. Step 6: Final answer
    x = 14,882.50

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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.