Home / 19,128.66-26,397.79-10,631.32

Finding the Fourth Proportional to 19,128.66, 26,397.79 and 10,631.32

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Solution

The fourth proportional to 19,128.66, 26,397.79 and 10,631.32 is: 14,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.66 : 26,397.79 = 10,631.32 : x
  2. Step 2: Convert to fraction form
    19,128.66/26,397.79 = 10,631.32/x
  3. Step 3: Cross multiply
    19,128.66x = 26,397.79 × 10,631.32
  4. Step 4: Simplify right side
    19,128.66x = 280,643,260.21
  5. Step 5: Solve for x
    x = 280,643,260.21/19,128.66
  6. Step 6: Final answer
    x = 14,671.35

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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.