Home / 13,980.06-19,292.04-7,692.40

Finding the Fourth Proportional to 13,980.06, 19,292.04 and 7,692.40

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Solution

The fourth proportional to 13,980.06, 19,292.04 and 7,692.40 is: 10,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.06 : 19,292.04 = 7,692.40 : x
  2. Step 2: Convert to fraction form
    13,980.06/19,292.04 = 7,692.40/x
  3. Step 3: Cross multiply
    13,980.06x = 19,292.04 × 7,692.40
  4. Step 4: Simplify right side
    13,980.06x = 148,402,088.50
  5. Step 5: Solve for x
    x = 148,402,088.50/13,980.06
  6. Step 6: Final answer
    x = 10,615.27

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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.