Home / 18,342.54-25,312.80-10,386.32

Finding the Fourth Proportional to 18,342.54, 25,312.80 and 10,386.32

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Solution

The fourth proportional to 18,342.54, 25,312.80 and 10,386.32 is: 14,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.54 : 25,312.80 = 10,386.32 : x
  2. Step 2: Convert to fraction form
    18,342.54/25,312.80 = 10,386.32/x
  3. Step 3: Cross multiply
    18,342.54x = 25,312.80 × 10,386.32
  4. Step 4: Simplify right side
    18,342.54x = 262,906,824.47
  5. Step 5: Solve for x
    x = 262,906,824.47/18,342.54
  6. Step 6: Final answer
    x = 14,333.17

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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.