Home / 18,271.54-25,214.73-9,888.02

Finding the Fourth Proportional to 18,271.54, 25,214.73 and 9,888.02

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Solution

The fourth proportional to 18,271.54, 25,214.73 and 9,888.02 is: 13,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.54 : 25,214.73 = 9,888.02 : x
  2. Step 2: Convert to fraction form
    18,271.54/25,214.73 = 9,888.02/x
  3. Step 3: Cross multiply
    18,271.54x = 25,214.73 × 9,888.02
  4. Step 4: Simplify right side
    18,271.54x = 249,323,754.53
  5. Step 5: Solve for x
    x = 249,323,754.53/18,271.54
  6. Step 6: Final answer
    x = 13,645.47

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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.