Home / 18,779.18-25,915.57-10,281.16

Finding the Fourth Proportional to 18,779.18, 25,915.57 and 10,281.16

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Solution

The fourth proportional to 18,779.18, 25,915.57 and 10,281.16 is: 14,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.18 : 25,915.57 = 10,281.16 : x
  2. Step 2: Convert to fraction form
    18,779.18/25,915.57 = 10,281.16/x
  3. Step 3: Cross multiply
    18,779.18x = 25,915.57 × 10,281.16
  4. Step 4: Simplify right side
    18,779.18x = 266,442,105.20
  5. Step 5: Solve for x
    x = 266,442,105.20/18,779.18
  6. Step 6: Final answer
    x = 14,188.17

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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.