Home / 18,818.90-25,969.50-10,320.58

Finding the Fourth Proportional to 18,818.90, 25,969.50 and 10,320.58

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Solution

The fourth proportional to 18,818.90, 25,969.50 and 10,320.58 is: 14,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.90 : 25,969.50 = 10,320.58 : x
  2. Step 2: Convert to fraction form
    18,818.90/25,969.50 = 10,320.58/x
  3. Step 3: Cross multiply
    18,818.90x = 25,969.50 × 10,320.58
  4. Step 4: Simplify right side
    18,818.90x = 268,020,302.31
  5. Step 5: Solve for x
    x = 268,020,302.31/18,818.90
  6. Step 6: Final answer
    x = 14,242.08

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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.