Home / 18,312.21-25,271.36-10,355.65

Finding the Fourth Proportional to 18,312.21, 25,271.36 and 10,355.65

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Solution

The fourth proportional to 18,312.21, 25,271.36 and 10,355.65 is: 14,291.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.21 : 25,271.36 = 10,355.65 : x
  2. Step 2: Convert to fraction form
    18,312.21/25,271.36 = 10,355.65/x
  3. Step 3: Cross multiply
    18,312.21x = 25,271.36 × 10,355.65
  4. Step 4: Simplify right side
    18,312.21x = 261,701,283.06
  5. Step 5: Solve for x
    x = 261,701,283.06/18,312.21
  6. Step 6: Final answer
    x = 14,291.08

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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.