Home / 19,146.40-26,421.78-10,648.60

Finding the Fourth Proportional to 19,146.40, 26,421.78 and 10,648.60

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Solution

The fourth proportional to 19,146.40, 26,421.78 and 10,648.60 is: 14,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.40 : 26,421.78 = 10,648.60 : x
  2. Step 2: Convert to fraction form
    19,146.40/26,421.78 = 10,648.60/x
  3. Step 3: Cross multiply
    19,146.40x = 26,421.78 × 10,648.60
  4. Step 4: Simplify right side
    19,146.40x = 281,354,966.51
  5. Step 5: Solve for x
    x = 281,354,966.51/19,146.40
  6. Step 6: Final answer
    x = 14,694.93

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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.