Home / 13,929.04-20,868.40-9,237.88

Finding the Fourth Proportional to 13,929.04, 20,868.40 and 9,237.88

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Solution

The fourth proportional to 13,929.04, 20,868.40 and 9,237.88 is: 13,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.04 : 20,868.40 = 9,237.88 : x
  2. Step 2: Convert to fraction form
    13,929.04/20,868.40 = 9,237.88/x
  3. Step 3: Cross multiply
    13,929.04x = 20,868.40 × 9,237.88
  4. Step 4: Simplify right side
    13,929.04x = 192,779,774.99
  5. Step 5: Solve for x
    x = 192,779,774.99/13,929.04
  6. Step 6: Final answer
    x = 13,840.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.