Home / 18,281.57-25,228.67-9,898.07

Finding the Fourth Proportional to 18,281.57, 25,228.67 and 9,898.07

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Solution

The fourth proportional to 18,281.57, 25,228.67 and 9,898.07 is: 13,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.57 : 25,228.67 = 9,898.07 : x
  2. Step 2: Convert to fraction form
    18,281.57/25,228.67 = 9,898.07/x
  3. Step 3: Cross multiply
    18,281.57x = 25,228.67 × 9,898.07
  4. Step 4: Simplify right side
    18,281.57x = 249,714,966.03
  5. Step 5: Solve for x
    x = 249,714,966.03/18,281.57
  6. Step 6: Final answer
    x = 13,659.39

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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.