Home / 15,473.29-21,345.37-10,431.13

Finding the Fourth Proportional to 15,473.29, 21,345.37 and 10,431.13

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Solution

The fourth proportional to 15,473.29, 21,345.37 and 10,431.13 is: 14,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.29 : 21,345.37 = 10,431.13 : x
  2. Step 2: Convert to fraction form
    15,473.29/21,345.37 = 10,431.13/x
  3. Step 3: Cross multiply
    15,473.29x = 21,345.37 × 10,431.13
  4. Step 4: Simplify right side
    15,473.29x = 222,656,329.37
  5. Step 5: Solve for x
    x = 222,656,329.37/15,473.29
  6. Step 6: Final answer
    x = 14,389.72

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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.