Home / 13,365.40-20,060.26-7,130.74

Finding the Fourth Proportional to 13,365.40, 20,060.26 and 7,130.74

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Solution

The fourth proportional to 13,365.40, 20,060.26 and 7,130.74 is: 10,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.40 : 20,060.26 = 7,130.74 : x
  2. Step 2: Convert to fraction form
    13,365.40/20,060.26 = 7,130.74/x
  3. Step 3: Cross multiply
    13,365.40x = 20,060.26 × 7,130.74
  4. Step 4: Simplify right side
    13,365.40x = 143,044,498.39
  5. Step 5: Solve for x
    x = 143,044,498.39/13,365.40
  6. Step 6: Final answer
    x = 10,702.60

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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.