Home / 14,605.51-20,155.61-7,891.13

Finding the Fourth Proportional to 14,605.51, 20,155.61 and 7,891.13

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Solution

The fourth proportional to 14,605.51, 20,155.61 and 7,891.13 is: 10,889.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.51 : 20,155.61 = 7,891.13 : x
  2. Step 2: Convert to fraction form
    14,605.51/20,155.61 = 7,891.13/x
  3. Step 3: Cross multiply
    14,605.51x = 20,155.61 × 7,891.13
  4. Step 4: Simplify right side
    14,605.51x = 159,050,579.26
  5. Step 5: Solve for x
    x = 159,050,579.26/14,605.51
  6. Step 6: Final answer
    x = 10,889.77

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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.