Home / 13,787.24-19,030.71-7,822.87

Finding the Fourth Proportional to 13,787.24, 19,030.71 and 7,822.87

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Solution

The fourth proportional to 13,787.24, 19,030.71 and 7,822.87 is: 10,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.24 : 19,030.71 = 7,822.87 : x
  2. Step 2: Convert to fraction form
    13,787.24/19,030.71 = 7,822.87/x
  3. Step 3: Cross multiply
    13,787.24x = 19,030.71 × 7,822.87
  4. Step 4: Simplify right side
    13,787.24x = 148,874,770.34
  5. Step 5: Solve for x
    x = 148,874,770.34/13,787.24
  6. Step 6: Final answer
    x = 10,798.01

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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.