Home / 15,338.93-21,142.23-10,856.93

Finding the Fourth Proportional to 15,338.93, 21,142.23 and 10,856.93

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Solution

The fourth proportional to 15,338.93, 21,142.23 and 10,856.93 is: 14,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.93 : 21,142.23 = 10,856.93 : x
  2. Step 2: Convert to fraction form
    15,338.93/21,142.23 = 10,856.93/x
  3. Step 3: Cross multiply
    15,338.93x = 21,142.23 × 10,856.93
  4. Step 4: Simplify right side
    15,338.93x = 229,539,711.15
  5. Step 5: Solve for x
    x = 229,539,711.15/15,338.93
  6. Step 6: Final answer
    x = 14,964.52

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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.