Home / 13,438.59-18,532.55-10,246.28

Finding the Fourth Proportional to 13,438.59, 18,532.55 and 10,246.28

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Solution

The fourth proportional to 13,438.59, 18,532.55 and 10,246.28 is: 14,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.59 : 18,532.55 = 10,246.28 : x
  2. Step 2: Convert to fraction form
    13,438.59/18,532.55 = 10,246.28/x
  3. Step 3: Cross multiply
    13,438.59x = 18,532.55 × 10,246.28
  4. Step 4: Simplify right side
    13,438.59x = 189,889,552.52
  5. Step 5: Solve for x
    x = 189,889,552.52/13,438.59
  6. Step 6: Final answer
    x = 14,130.17

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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.