Home / 18,347.04-25,320.60-10,389.60

Finding the Fourth Proportional to 18,347.04, 25,320.60 and 10,389.60

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Solution

The fourth proportional to 18,347.04, 25,320.60 and 10,389.60 is: 14,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.04 : 25,320.60 = 10,389.60 : x
  2. Step 2: Convert to fraction form
    18,347.04/25,320.60 = 10,389.60/x
  3. Step 3: Cross multiply
    18,347.04x = 25,320.60 × 10,389.60
  4. Step 4: Simplify right side
    18,347.04x = 263,070,905.76
  5. Step 5: Solve for x
    x = 263,070,905.76/18,347.04
  6. Step 6: Final answer
    x = 14,338.60

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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.