Home / 13,271.60-19,907.40-13,077.20

Finding the Fourth Proportional to 13,271.60, 19,907.40 and 13,077.20

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Solution

The fourth proportional to 13,271.60, 19,907.40 and 13,077.20 is: 19,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.60 : 19,907.40 = 13,077.20 : x
  2. Step 2: Convert to fraction form
    13,271.60/19,907.40 = 13,077.20/x
  3. Step 3: Cross multiply
    13,271.60x = 19,907.40 × 13,077.20
  4. Step 4: Simplify right side
    13,271.60x = 260,333,051.28
  5. Step 5: Solve for x
    x = 260,333,051.28/13,271.60
  6. Step 6: Final answer
    x = 19,615.80

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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.