Home / 18,386.04-25,364.31-10,828.76

Finding the Fourth Proportional to 18,386.04, 25,364.31 and 10,828.76

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Solution

The fourth proportional to 18,386.04, 25,364.31 and 10,828.76 is: 14,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.04 : 25,364.31 = 10,828.76 : x
  2. Step 2: Convert to fraction form
    18,386.04/25,364.31 = 10,828.76/x
  3. Step 3: Cross multiply
    18,386.04x = 25,364.31 × 10,828.76
  4. Step 4: Simplify right side
    18,386.04x = 274,663,858.13
  5. Step 5: Solve for x
    x = 274,663,858.13/18,386.04
  6. Step 6: Final answer
    x = 14,938.72

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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.