Home / 18,279.10-25,225.14-9,895.60

Finding the Fourth Proportional to 18,279.10, 25,225.14 and 9,895.60

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Solution

The fourth proportional to 18,279.10, 25,225.14 and 9,895.60 is: 13,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.10 : 25,225.14 = 9,895.60 : x
  2. Step 2: Convert to fraction form
    18,279.10/25,225.14 = 9,895.60/x
  3. Step 3: Cross multiply
    18,279.10x = 25,225.14 × 9,895.60
  4. Step 4: Simplify right side
    18,279.10x = 249,617,895.38
  5. Step 5: Solve for x
    x = 249,617,895.38/18,279.10
  6. Step 6: Final answer
    x = 13,655.92

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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.